MC68HC908LK24 MOTOROLA [Motorola, Inc], MC68HC908LK24 Datasheet - Page 140

• Manufacturer Part Number: MC68HC908LK24
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

System Integration Module (SIM)
9.2 Introduction
Data Sheet
140
9.6.4
9.7
9.7.1
9.7.2
9.8
9.8.1
9.8.2
9.8.3
This section describes the system integration module (SIM). Together
with the CPU, the SIM controls all MCU activities. A block diagram of the
SIM is shown in
input/output (I/O) registers. The SIM is a system state controller that
coordinates CPU and exception timing. The SIM is responsible for:
Table 9-1
Freescale Semiconductor, Inc.
•
•
•
•
•
For More Information On This Product,
Bus clock generation and control for CPU and peripherals:
– Stop/wait/reset/break entry and recovery
– Internal clock control
Master reset control, including power-on reset (POR) and COP
timeout
Interrupt control:
– Acknowledge timing
– Arbitration control timing
– Vector address generation
CPU enable/disable timing
Modular architecture expandable to 128 interrupt sources
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
SIM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Status Flag Protection in Break Mode . . . . . . . . . . . . . . . . 156
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158
SIM Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . 160
SIM Reset Status Register . . . . . . . . . . . . . . . . . . . . . . . . 161
SIM Break Flag Control Register . . . . . . . . . . . . . . . . . . . . 162
System Integration Module (SIM)
shows the internal signal names used in this section.
Go to: www.freescale.com
Figure
9-1.
Table 9-1
is a summary of the SIM
MC68HC908LJ24/LK24 — Rev. 2
MOTOROLA