Motorola MC9S12A256 Manuals

Manuals and User Guides for Motorola MC9S12A256. We have 1 Motorola MC9S12A256 manual available for free PDF download: User Manual

Motorola MC9S12A256 User Manual

Motorola MC9S12A256 User Manual (132 pages)

Brand: Motorola | Category: Microcontrollers | Size: 0.85 MB

Table of Contents

Table of Contents
5
Figure 0-1 Order Partnumber Example
15
Table 0-1 Derivative Differences
15
Table 0-2 Document References
17
Table 0-3 Specification Change Summary for Maskset L91N
17
Section 1 Introductionmc9S12Dt256

19
- Overview
  19
- Features
  19
- Modes of Operation
  21
- Block Diagram
  22
- Figure 1-1 MC9S12DT256 Block Diagram
  23
- Device Memory Map
  24
- Table 1-1 Device Memory Map
  24
- Figure 1-2 MC9S12DT256 Memory Map
  26
- Detailed Register Map
  27
- Table 1-2 Detailed MSCAN Foreground Receive and Transmit Buffer Layout
  43
- Part ID Assignments
  50
- Table 1-3 Assigned Part ID Numbers
  50
- Table 1-4 Memory Size Registers
  50
Section 2 Signal Description

51
Section 3 System Clock Description

69
- Overview
  69
- Figure 3-1 Clock Connections
  69
Section 4 Modes of Operation

71
- Overview
  71
- Chip Configuration Summary
  71
- Table 4-1 Mode Selection
  71
- Table 4-2 Clock Selection Based on PE7
  71
- Security
  72
- Securing the Microcontroller
  72
- Operation of the Secured Microcontroller
  72
- Table 4-3 Voltage Regulator VREGEN
  72
- Unsecuring the Microcontroller
  73
- Low Power Modes
  73
- Stop
  73
- Pseudo Stop
  73
- Wait
  73
- Run
  74
Section 5 Resets and Interrupts

75
Appendix A Electrical Characteristics

89
- General
  89
- Parameter Classification
  89
- Power Supply
  89
- A.1 General
  89
- Pins
  90
- A.1.3 Pins
  90
- Current Injection
  91
- Absolute Maximum Ratings
  91
  - Table A-1 Absolute Maximum Ratings
    91
- A.1.4 Current Injection
  91
- ESD Protection and Latch-Up Immunity
  92
  - Table A-2 ESD and Latch-Up Test Conditions
    92
  - Table A-3 ESD and Latch-Up Protection Characteristics
    92
- Operating Conditions
  93
- Power Dissipation and Thermal Characteristics
  93
  - Table A-4 Operating Conditions
    93
- A.1.7 Operating Conditions
  93
- I/O Characteristics
  95
- Supply Currents
  97
  - A.1.10 Supply Currents
    97
  - Table A-7 Supply Current Characteristics
    98
- ATD Characteristics
  99
- ATD Operating Characteristics
  99
- Factors Influencing Accuracy
  99
- ATD Accuracy
  101
  - Table A-10 ATD Conversion Performance
    101
- A.2.3 ATD Accuracy
  101
- Figure A-1 ATD Accuracy Definitions
  102
- NVM, Flash and EEPROM
  103
- NVM Timing
  103
  - Table A-11 NVM Timing Characteristics
    104
- NVM Reliability
  106
  - Table A-12 NVM Reliability Characteristics
    106
- A.3.2 NVM Reliability
  106
- Figure A-2 Typical Endurance Vs Temperature
  107
- Voltage Regulator
  109
  - Table A-13 Voltage Regulator Recommended Load Capacitances
    109
- A.4 Voltage Regulator
  109
- Reset, Oscillator and PLL
  111
- Startup
  111
  - Table A-14 Startup Characteristics
    111
- Oscillator
  112
  - Table A-15 Oscillator Characteristics
    112
- A.5.2 Oscillator
  112
- Phase Locked Loop
  113
- Mscan
  117
  - Table A-17 MSCAN Wake-Up Pulse Characteristics
    117
- A.6 Mscan
  117
- Spi
  119
- Master Mode
  119
- Slave Mode
  121
- External Bus Timing
  123
- General Muxed Bus Timing
  123
- Figure A-10 General External Bus Timing
  124
Appendix B Package Information

127
- General
  127
- B.1 General
  127
- 112-Pin LQFP Package
  128
- Figure B-1 112-Pin LQFP Mechanical Dimensions (Case No. 987)
  128
- 80-Pin QFP Package
  129
- Figure B-2 80-Pin QFP Mechanical Dimensions (Case No. 841B)
  129

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