MC68SEC000 Datasheet by NXP USA Inc.

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MD [#9 MOTOROLA
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MC68SEC000/D
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
Product Brief
MC68SEC000 Microprocessor
MC68SEC000
1996 Motorola, Inc. All Rights Reserved.
Communications and Advanced
Consumer Technologies Group
SEMICONDUCTOR PRODUCT INFORMATION
INTRODUCTION
The MC68SEC000 is a cost-effective static embedded processor engineered for low-power applications. In
addition to providing the substantial cost and performance benefits of the MC68EC000, the low-power mode of
the MC68SEC000 provides significant advantages in power consumption and power management. The typical
current consumption of the MC68SEC000 is only 0.5
µ
A in static standby mode and 15.0mA in normal 3.3V
operation. The MC68SEC000 operates in either 3.3V or 5.0V systems. The remarkably low power consumption,
small footprint packages, and static implementation are combined in the MC68SEC000 for low-power
applications such as personal digital assistants, portable measuring equipment, electronic games, and battery-
operated hand-held consumer products.
The HCMOS MC68SEC000 static architecture is a direct replacement for the MC68EC000, which offers the
lowest cost entry point to 32-bit processing. The internal 32-bit architecture provides fast and efficient
processing that satisfies the requirements of sophisticated applications based on high-level languages. In
addition to being pin-for-pin compatible with the MC68EC000, the MC68SEC000 is object-code compatible with
any member of the M68000 Family. Complete code compatibility lets system designers reduce time to market
because they can rely on existing M68000 Family code and a broad base of established development tools.
The MC68SEC000 will be available in two small footprint packages: the 64 lead plastic Quad Flat Pack and the
64 lead Thin Quad Flat Pack. The Thin Quad Flat Pack provides a very small package footprint (10.0mm x
10.0mm), making it an ideal choice for portable applications.
The primary features of the MC68SEC000 embedded processor include the following:
Direct Replacement for the MC68EC000
Pin-for-pin compatibility with the MC68EC000 in the plastic QFP package
Vast selection of existing third-party development tools for the MC68EC000 support the
MC68SEC000
Software written for the MC68EC000 will run unchanged on the MC68SEC000
Power Management
Low power HCMOS technology
Static design allows for stopping the processor clock
3.3V or 5V operation
Typical 0.5
µ
A current consumption at 3.3V in sleep mode
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2 MC68SEC000 PRODUCT INFORMATION MOTOROLA
Architecture
Eight 32-bit address registers
Eight 32-bit data registers
16-Mbyte linear addressing range
56 powerful instruction types
Operations on five main data types
Memory-mapped I/O
14 addressing modes
Software Strength
Fully upward object-code compatible with other M68000 Family products
M68000 architecture allows effective assembly code with a C compiler
Available Packages
64-pin plastic Quad Flat Pack (QFP)
64-pin Thin Quad Flat Pack (TQFP)
Speed
10/16/20 MHz
Upgrade
Fully upward code-compatible with higher performance 680x0 and 68300 Family members
— ColdFire
TM
code-compatible with minor modifications
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MOTOROLA MC68SEC000 PRODUCT INFORMATION 3
OVERVIEW
Figure 1 is a block diagram of the MC68SEC000 embedded processor. This processor provides a 24-bit
address bus and a statically selectable 8- or 16-bit data bus, sixteen 32-bit registers, and seven interrupt
levels.
Figure 1. Block Diagram of MC68SEC000
HARDWARE/SOFTWARE COMPATIBILITY
The MC68SEC000 embedded processor is hardware compatible with the MC68EC000, object-code
compatible with the MC68EC000, and
upward compatible with all members of the M68000 Family. Object-
code compatibility with the M68000 enables code written for the MC68SEC000 to be migrated without
modification to any member of the M68000 Family.
LOW-POWER MODE
The MC68SEC000 provides static low-power operation. While in low-power mode, power consumption is
reduced to its quiescent value while maintaining the internal state of the processor. The recommended
method for placing the MC68SEC000 into low-power mode is described in
Addendum to M68000 8-/16-/32-
Bit Microprocessor Users Manual,
M68000 UMAD/AD
.
SIGNAL DESCRIPTION
Figure 2 shows the functional signal groups for the MC68SEC000. These groups are briefly described in
the following paragraphs.
PREFETCH/
DECODE
EXECUTION
UNIT
BUS
CONTROLLER
24-BIT ADDRESS BUS
16-BIT DATA BUS
CONTROL
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3
4 MC68SEC000 PRODUCT INFORMATION MOTOROLA
Figure 2. Functional Signal Groups
Address Bus (A23-A0)
This 24-bit, unidirectional, three-state bus can address 16 Mbytes of data. It provides the address for bus
operation during all cycles except interrupt cycles. During interrupt cycles, A3, A2, and A1 reflect the level
of the interrupt being serviced, while A23-A4 and A0 are set to a logic high.
Data Bus (D15-D0)
This 16-bit, bidirectional, three-state bus is the general-purpose data path. Using the mode pin, you can
statically select either 8- or 16-bit modes for data transfer.
Asynchronous Bus Control
Asynchronous data transfers are handled using the following control signals: address strobe (AS), read/
write (R/W), upper and lower data strobes (UDS, LDS), and data transfer acknowledge (DTACK). The
address strobe signal indicates there is a valid address on the address bus. Read/write defines the data bus
transfer as a read or write cycle. The data strobes control the flow of data on the data bus and the data
transfer acknowledge indicates that the data transfer is complete.
Bus Arbitration Control
In multiple bus master systems, the bus arbitration circuit determines which device will be the bus master.
The bus request (BR) indicates that an external device requires bus mastership. A bus grant (BG) indicates
to all other potential bus master devices that the controller will release bus control at the end of the current
bus cycle.
ADDRESS BUS
DATA BUS
ASYNCHRONOUS
BUS CONTROL
BUS ARBITRATION
CONTROL
INTERRUPT
CONTROL
PROCESSOR
STATUS
A23-A0
D15-D0
AS
R/W
UDS
LDS
DTACK
BERR
RESET
HALT
MODE
SYSTEM
CONTROL
V
CC
GND
CLK
MC68SEC000
FC0
FC1
FC2
IPL0
IPL1
IPL2
AVEC
BR
BG
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MOTOROLA MC68SEC000 PRODUCT INFORMATION 5
Interrupt Control
The MC68SEC000 provides seven levels of interrupts. The interrupt priority level (IPL2, IPL1, IPL0) inputs
determine the priority level. Level 7 is nonmaskable and is the highest priority interrupt. Automatic vectoring,
based on IPL inputs, is available with the autovector (AVEC) input.
System Control
The system control inputs include the RESET, HALT, BERR, and MODE signals. These signals can reset
or halt the controller, indicate to the controller that a bus error has occurred, and select from 8- or 16-bit
operating mode.
Processor Status (FC2, FC1, FC0)
These active-high, three-state function code outputs indicate the mode (user or supervisor) and the address
space currently being accessed. The function code outputs are valid whenever AS is active.
PACKAGE DIAGRAM
The following package diagram applies to both the plastic QFP and TQFP packages of the MC68SEC000.
Figure 3. MC68SEC000 Package Diagram
A19
A18
A17
A16
A15
A14
A13
V
CC
D13
D14
D15
A20
A21
A23
A22
D5
D6
D7
D4
D3
D2
D1
D0
AS
R/W
LDS
UDS
D8
D9
D10
D11
D12
A12
A11
A10
A9
A8
A7
A6
A5
FC0
A0
A1
A3
GND
A4
A2
FC1
CLK
DTACK
BG
BR
HALT
RESET
BERR
IPL1
V
CC
MODE
GND
IPL2
AVEC
1
16 17 33
32
64
48
49
64 LEAD QFP and TQFP
IPL0
FC2
GND
MC68SEC000
MC68SEC000
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SEMICONDUCTOR PRODUCT INFORMATION
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different
applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not
convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the
Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended
or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all
claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with
such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
Literature Distribution Centers:
USA/EUROPE: Motorola Literature Distribution; P.O. Box 20912, Arizona 85036.
JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141 Japan.
ASIA-PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate,
Tai Po, N.T., Hong Kong.
ORDERING INFORMATION
The following table contains the ordering information for the MC68SEC000.
DEVELOPER TOOLS
All of the existing third-party developer tools widely available for the MC68EC000 will directly support the
MC68SEC000. You can find detailed descriptions of these tools in the
High Performance Embedded Systems
Source Catalog
(Revision 4).
DOCUMENTATION
The documents listed in the following table contain detailed information that pertain to the MC68SEC000
processor. These documents can be obtained from the Literature Distribution Centers at the addresses listed
on the last page of this document.
MC68SEC000 Ordering Information
PACKAGE BODY SIZE LEAD SPACING SPEED VOLTAGE SUFFIX TEMPERATURE
RANGE
QFP 14.0 mm X 14.0mm 0.8mm
10/16/20 MHz 3.3V or 5.0V
FU 0C to +70C
CFU -40C to +85C
TQFP 10.0mm x 10.0mm 0.5mm PB 0C to +70C
CPB -40C to +85C
MC68SEC000 DOCUMENTATION
MC68SEC000 DOCUMENTATION DOCUMENT NUMBER AVAILABILITY
M68000 Family
Programmer’s Reference Manual M68000PM/AD Now
M68000 User’s Manual Revision 8 M68000UM/AD Now
Addendum to M68000 8-/16-/32- Bit
Microprocessor Users Manual Revision 8 M68000UMAD/AD Now
High Performance Embedded Systems
Source Catalog Revision 4 BR729/D Rev. 4 Now
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SEMICONDUCTOR PRODUCT INFORMATION
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different
applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not
convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the
Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended
or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all
claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with
such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
Literature Distribution Centers:
USA/EUROPE: Motorola Literature Distribution; P.O. Box 20912, Arizona 85036.
JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141 Japan.
ASIA-PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate,
Tai Po, N.T., Hong Kong.
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For More Information On This Product,
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SEMICONDUCTOR PRODUCT INFORMATION
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different
applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not
convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the
Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended
or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all
claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with
such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
Literature Distribution Centers:
USA/EUROPE: Motorola Literature Distribution; P.O. Box 20912, Arizona 85036.
JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141 Japan.
ASIA-PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate,
Tai Po, N.T., Hong Kong.
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