MC68HC11PH8 Datasheet, PDF (180/264 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit

CSEL — Clock select
1 (set) – A/D, EPROM and EEPROM use internal RC clock source
(about 1.5MHz).
0 (clear) – A/D, EPROM and EEPROM use system E clock
(must be at least 1MHz).
Selects alternate clock source for on-chip EPROM, EEPROM and A/D charge pumps. The on-chip
RC clock should be used when the E clock frequency falls below 1MHz.
IRQE — Configure IRQ for falling edge sensitive operation (refer to Section 3)
1 (set) – Falling edge sensitive operation.
0 (clear) – Low level sensitive operation.
DLY — Enable oscillator start-up delay (refer to Section 3)
1 (set) – A stabilization delay is imposed as the MCU is started up from STOP
mode or from power-on reset.
0 (clear) –
The oscillator start-up delay coming out of STOP is bypassed and the
MCU resumes processing within about four bus cycles. A stable
external oscillator is required if this option is selected.
CME — Clock monitor enable (refer to Section 10)
1 (set) – Clock monitor enabled.
9
0 (clear) – Clock monitor disabled.
FCME — Force clock monitor enable (refer to Section 10)
1 (set) – Clock monitor enabled, cannot be disabled until next reset.
0 (clear) – Clock monitor follows the state of the CME bit.
CR[1:0] — COP timer rate select bits (refer to Section 10)
MOTOROLA
9-6
ANALOG-TO-DIGITAL CONVERTER
TPG
MC68HC11PH8