68HC05PL4 datasheet(66/98 Pages) FREESCALE

Part #	68HC05PL4

Description	Industry standard 8-bit M68HC05 CPU core

PDF	98 Pages

Scroll/Zoom	100%

Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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66 / 98 page

GENERAL RELEASE SPECIFICATION

April 30, 1998

8-BIT TIMER

MC68HC05PL4

10-4

REV 2.0

10.5

8-BIT TIMER OPERATION DURING WAIT MODE

The CPU clock halts during the WAIT mode, but the timer remains active. If the

interrupts are enabled, the timer interrupt will cause the processor to exit the WAIT

mode.

10.6

8-BIT TIMER OPERATION DURING STOP MODE

The timer ceases counting in STOP mode. When STOP is exited by an external

interrupt or an external reset, the internal oscillator will resume its operation, fol-

lowed by internal processor stabilization delay. The timer is then cleared to zero

and resumes its operation.

NOTE

The T8IF bit in T8CSR will be set after MCU exit from STOP mode. To avoid

generation of the timer 8 interrupt when exiting STOP mode, it is recommended to

clear T8IE bit prior entering STOP mode. After exiting STOP mode T8IF bit must

be cleared before setting T8IE bit.

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68HC05PL4 Datasheet(PDF) 66 Page - Freescale Semiconductor, Inc