mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 143

• Manufacturer Part Number: mc68hc908sr12
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
CGMVCLK, CGMPCLK
PIN LOGIC
RESET
Signal Name
CGMXCLK
CGMOUT
PORRST
ICLK
IRST
R/W
IAB
IDB
V
DD
INTERNAL
PULLUP
DEVICE
SIM RESET STATUS REGISTER
Internal oscillator clock
Selected oscillator clock from oscillator module
PLL output and the divided PLL output
CGMPCLK-based or oscillator-based clock output from CGM module
(Bus clock = CGMOUT ÷ 2)
Internal address bus
Internal data bus
Signal from the power-on reset module to the SIM
Internal reset signal
Read/write signal
RESET PIN CONTROL
Table 9-1. Signal Name Conventions
POR CONTROL
AND PRIORITY DECODE
STOP/WAIT
INTERRUPT CONTROL
CONTROL
CONTROL
Figure 9-1. SIM Block Diagram
CLOCK
System Integration Module (SIM)
CLOCK GENERATORS
RESET
COUNTER
SIM
÷ 2
CONTROL
MASTER
RESET
Description
MODULE STOP
MODULE WAIT
CPU STOP (FROM CPU)
CPU WAIT (FROM CPU)
SIMOSCEN (TO CGM, OSC)
COP CLOCK
ICLK (FROM OSC)
CGMOUT (FROM CGM)
INTERNAL CLOCKS
LVI (FROM LVI MODULE)
ILLEGAL OPCODE (FROM CPU)
ILLEGAL ADDRESS (FROM ADDRESS
MAP DECODERS)
COP (FROM COP MODULE)
INTERRUPT SOURCES
CPU INTERFACE
System Integration Module (SIM)
Introduction
Data Sheet
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