MC68HC12 Datasheet, PDF (21/478 Pages) Motorola, Inc – The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit

Technical Data — MC68HC912DT128A
List of Tables
Table
Title
Page
1-1
1-2
2-1
2-2
3-1
3-2
3-3
3-4
4-1
5-1
6-1
6-2
6-3
6-4
6-5
6-6
7-1
9-1
9-2
9-3
9-4
10-1
10-2
12-1
12-2
12-3
12-4
12-5
Device Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Development Tools Ordering Information. . . . . . . . . . . . . . . . .33
M68HC12 Addressing Mode Summary . . . . . . . . . . . . . . . . . .38
Summary of Indexed Operations . . . . . . . . . . . . . . . . . . . . . . . 39
MC68HC912DT128A Power and Ground Connection
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
MC68HC912DT128A Signal Description Summary . . . . . . . . .54
MC68HC912DT128A Port Description Summary. . . . . . . . . . . 64
Port Pull-Up, Pull-Down and Reduced Drive Summary . . . . . .65
Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Mapping Precedence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Program space Page Index . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Flash Register space Page Index. . . . . . . . . . . . . . . . . . . . . . .93
Test mode program space Page Index. . . . . . . . . . . . . . . . . . . 94
RFSTR Stretch Bit Definition . . . . . . . . . . . . . . . . . . . . . . . . . .97
EXSTR Stretch Bit Definition . . . . . . . . . . . . . . . . . . . . . . . . . .98
Access Type vs. Bus Control Pins . . . . . . . . . . . . . . . . . . . . . 104
EEDIV Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
2K byte EEPROM Block Protection . . . . . . . . . . . . . . . . . . . . 130
Erase Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
Shadow word mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
Interrupt Vector Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Stacking Order on Entry to Interrupts . . . . . . . . . . . . . . . . . . . 147
Summary of STOP Mode Exit Conditions. . . . . . . . . . . . . . . .174
Summary of Pseudo STOP Mode Exit Conditions . . . . . . . . .174
Clock Monitor Time-Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Real Time Interrupt Rates. . . . . . . . . . . . . . . . . . . . . . . . . . . .188
COP Watchdog Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .191
MC68HC912DT128A — Rev 4.0
MOTOROLA
List of Tables
Technical Data
21