MC68HC908LJ24 Datasheet, PDF (358/464 Pages) Motorola, Inc – Microcontrollers

Liquid Crystal Display (LCD) Driver
17.6.1 Wait Mode
The LCD driver module continues normal operation in wait mode. If the
LCD is not required in wait mode, power down the LCD module by
clearing the LCDE bit before executing the WAIT instruction.
17.6.2 Stop Mode
For continuous LCD module operation in stop mode, the oscillator stop
mode enable bit (STOP_XCLKEN in CONFIG2 register) must be set
before executing the STOP instruction. When STOP_XCLKEN is set,
CGMXCLK continues to drive the LCD module.
If STOP_XCLKEN bit is cleared, the LCD module is inactive after the
execution of a STOP instruction. The STOP instruction does not affect
LCD register states. LCD module operation resumes after an external
interrupt. To further reduce power consumption, the LCD module should
be powered-down by clearing the LCDE bit before executing the STOP
instruction.
17.7 I/O Signals
The LCD driver module has thirty-six (36) output pins and shares eight
of them with port C I/O pins and eight with port E I/O pins.
• FP0/BP3 (multiplexed; selected as FP0 or BP3 by DUTY[1:0])
• BP0–BP2
• FP1–FP10
• FP11–FP18 (shared with port E)
• FP19–FP26 (shared with port C)
• FP27–FP32
Data Sheet
358
MC68HC908LJ24/LK24 — Rev. 2.1
Liquid Crystal Display (LCD) Driver
Freescale Semiconductor