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GMS81C2012 Datasheet(PDF) 79 Page - Hynix Semiconductor

Part # GMS81C2012
Description  HYUNDAI MICRO ELECTRONICS 8-BIT SINGLE-CHIP MICROCONTROLLERS
PDF  107 Pages
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Manufacturer  HYNIX [Hynix Semiconductor]
Direct Link  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

GMS81C2012 Datasheet(HTML) 79 Page - Hynix Semiconductor

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HYUNDAI MicroElectronics
GMS81C2012/GMS81C2020
MAR. 2000 Ver 1.00
79
17.1 Operating Mode
ACTIVE Mode
SCMR.1 = 0
fXI : oscillation
fSXI : oscillation
cpu : fSYS
tmr : fSYS
peri : fSYS
SCMR.0 = 0
+
SCMR.1 = 0
SCMR.1 = 1
SUB-ACTIVE Mode
SCMR.1 = 1
fXI : stop
fSXI : oscillation
cpu : fSUB
tmr : fSUB
peri : fSUB
SCMR.0 = 0/1
STANDBY Mode
SCMR.1 = 0
fXI : oscillation
fSXI : oscillation
cpu : stop
tmr : ps11(fXI)
peri : stop
CKCTLR[10]
+
STOP
TIMER0
EXT_INT
RESET
RC_WDT
WATCH Mode
SCMR.1 = 1
fXI : stop
fSXI : oscillation
cpu : stop
tmr : ps11(fSXI)
peri : stop
CKCTLR[10]
+
STOP
TIMER0
EXT_INT
RESET
RC_WDT
STOP Mode
SCMR.2 = 1
fXI : stop
fSXI : stop
cpu : stop
tmr : stop
peri : stop
(SUB_CLK OFF)
EXT_INT
RESET
RC_WDT
CKCTLR[00]
+
STOP
EXT_INT
RESET
RC_WDT
CKCTLR[00]
+
STOP
System Clock Mode Register
SCMR
ADDRESS : FAH
RESET VALUE : ---00000
-
-
-
CS1
CS0
SUBOFF
CLKSEL MAINOFF
CS[1:0]
Clock selection enable bits
00 : fXI
÷ 2 10 : fXI ÷16
01 : fXI
÷ 8 11 : fXI ÷ 64
CLKSEL
Clock selection bit
0 : Main clock selection
1 : Sub clock selection
SUBOFF
Sub clock control bit
0: On sub clock
1: Off sub clock
MAINOFF
Main clock control bit
0: On main clock
1: Off main clock
fXI
: main clock frequency
fSXI
: sub clock frequency
fSYS : fXI
÷2,fXI÷8,fXI÷16,fXI÷64
fSUB : fSXI
÷2,fSXI÷8,fSXI÷16,fSXI÷64
cpu
: system clock
tmr
: timer0 clock
peri
: peripheral clock
CKCTLR = CKCTLR[6:5]



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