參數(shù)資料
型號(hào)： KS57C2504
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
元件分類： 4位微控制器
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述： 4位單片機(jī)的小型通用紅外遙控器
文件頁(yè)數(shù)： 22/94頁(yè)
文件大?。?/td> 763K
代理商： KS57C2504
PRODUCT SPECIFICATION
S3C7254
4–22
PROGRAMMING TIP — Switching Between Main System and Subsystem Clock
1.
Switch from the main system clock to the subsystem clock:
MA2SUB
BITS
CALL
BITS
RET
LD
NOP
NOP
DECS
JR
RET
SCMOD.0
DLY80
SCMOD.3
;
;
;
Switches to subsystem clock
Delay 80 machine cycles
Stop the main system clock
DLY80
DEL1
A,#0FH
A
DEL1
2.
Switch from the subsystem clock to the main system clock:
SUB2MA
BITR
CALL
BITR
RET
SCMOD.3
DLY80
SCMOD.0
;
;
;
Start main system clock oscillation
Delay 80 machine cycles
Switch to main system clock
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