MC68HC908AS60ACFN FREESCALE [Freescale Semiconductor, Inc], MC68HC908AS60ACFN Datasheet - Page 111
MC68HC908AS60ACFN
Manufacturer Part Number
MC68HC908AS60ACFN
Description
M68HC08 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC68HC908AS60ACFN.pdf
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Chapter 9
System Integration Module (SIM)
9.1 Introduction
This chapter describes the system integration module (SIM), which supports up to 32 external and/or
internal interrupts. Together with the central processor unit (CPU), the SIM controls all MCU activities. A
block diagram of the SIM is shown in
registers. The SIM is a system state controller that coordinates CPU and exception timing. The SIM is
responsible for:
Freescale Semiconductor
•
•
•
•
Bus clock generation and control for CPU and peripherals
–
–
Master reset control, including power-on reset (POR) and computer operating properly (COP)
timeout
Interrupt control:
–
–
–
CPU enable/disable timing
Stop/wait/reset/break entry and recovery
Internal clock control
Acknowledge timing
Arbitration control timing
Vector address generation
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
Figure
9-1.
Figure 9-2
is a summary of the SIM input/output (I/O)
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