MC68HC908GT16 Datasheet, PDF (297/412 Pages) Motorola, Inc – Microcontrollers

System Integration Module (SIM)
Introduction
STOP/WAIT
CONTROL
SIM
COUNTER
MODULE STOP
MODULE WAIT
CPU STOP (FROM CPU)
CPU WAIT (FROM CPU)
SIMOSCEN (TO ICG)
CGMXCLK (FROM ICG)
CGMOUT (FROM ICG)
÷2
RESET
PIN LOGIC
V_DD
INTERNAL
PULLUP
DEVICE
CLOCK
CONTROL
CLOCK GENERATORS
POR CONTROL
RESET PIN CONTROL
SIM RESET STATUS REGISTER
MASTER
RESET
CONTROL
RESET
INTERNAL CLOCKS
FORCED MONITOR MODE ENTRY
LVI (FROM LVI MODULE)
ILLEGAL OPCODE (FROM CPU)
ILLEGAL ADDRESS (FROM ADDRESS
MAP DECODERS)
COP (FROM COP MODULE)
INTERRUPT CONTROL
AND PRIORITY DECODE
INTERRUPT SOURCES
CPU INTERFACE
Figure 19-1. SIM Block Diagram
Signal Name
CGMXCLK
CGMOUT
IAB
IDB
PORRST
IRST
R/W
Table 19-1. Signal Name Conventions
Description
Selected clock source from internal clock generator module (ICG)
Clock output from ICG module
(Bus clock = CGMOUT divided by two)
Internal address bus
Internal data bus
Signal from the power-on reset module to the SIM
Internal reset signal
Read/write signal
MC68HC908GT16 • MC68HC908GT8 — Rev. 2
MOTOROLA
System Integration Module (SIM)
Technical Data
297