mc68hc912bd32 Freescale Semiconductor, Inc, mc68hc912bd32 Datasheet - Page 101

• Manufacturer Part Number: mc68hc912bd32
• Description: 16-bit Device Composed Of Standard On-chip Peripherals
• Manufacturer: Freescale Semiconductor, Inc

1-clock
Contents
Introduction
Clock Selection and Generation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Clock Selection and Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Slow Mode Divider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
CGM Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Clock Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Computer Operating Properly (COP) . . . . . . . . . . . . . . . . . . . . . . . . 101
Real-Time Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Clock Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Clock Function Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Clock Divider Chains. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
The clock generation module (CGM) generates the system clocks and
generates and controls the timing of the reset and power-on reset logic.
The clock generation module is composed of:
The clock generation module generates the P clock, the E clock, and
four T clocks. The P clock and E clock are used by all device modules
except the CPU. The T clocks are used by the CPU.
Freescale Semiconductor, Inc.
•
•
•
For More Information On This Product,
clock selection and generation circuitry
slow mode clock divider
reset and stop generation timing and control
Go to: www.freescale.com
Clocks
MC68HC912BD32 Rev 1.0
Clocks
Clocks