GMS81C2112 Datasheet, PDF (79/107 Pages) Hynix Semiconductor – HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS

17.1 Operating Mode
fXI : Main clock frequency
fSYS : fXI,fXI÷4,fXI÷8,fXI÷32
cpu : system clock
tmr : timer0 clock
peri : peripheral clock
CKCTLR = CKCTLR[6:5]
GMS81C2112/GMS81C2120
STANDBY Mode
fXI : oscillation
cpu : stop
tmr : ps11(fXI)
peri : stop
CKCTLR[10]
+
STOP
TIMER0
EXT_INT
RESET
RC_WDT
ACTIVE Mode
fXI : oscillation
cpu : fSYS
tmr : fSYS
peri : fSYS
CKCTLR[00]
+
STOP
EXT_INT
RESET
RC_WDT
STOP Mode
fXI : stop
cpu : stop
tmr : stop
peri : stop
System Clock Mode Register
SCMR
ADDRESS : FAH
-
-
-
CS1
CS0
-
-
-
RESET VALUE : ---00---
CS[1:0]
Clock selection enable bits
00 : fXI
10 : fXI ÷ 8
01 : fXI ÷ 4 11 : fXI ÷ 32
JUNE. 2001 Ver 1.00
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