Standby Function Operations; Halt Mode - NEC mPD780852 Series Preliminary User's Manual

20.2 Standby Function Operations

20.2.1 HALT mode

(1) HALT mode setting and operating status
The HALT mode is set by executing the HALT instruction.
The operating status in the HALT mode is described below.
HALT Mode Setting
Item
Clock generator
CPU
Port (Output latch)
16-bit timer
8-bit timer
Watch timer
Watchdog timer
A/D converter
Serial interface
LCD controller/driver
External interrupt
Sound generator
Meter controller/driver
CHAPTER 20 STANDBY FUNCTION
Table 20-1. HALT Mode Operating Status
During HALT Instruction Execution Using Main System Clock
Main system clock can be oscillated.
Clock supply to CPU stops.
Operation stops.
Status before HALT mode setting is held.
Operable
Operation stops.
Operable
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