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CONTROL REGISTERS
Register Name
Oscillator control register
SIO control register
SIO data register
SIO pre-scaler register
Port 0 control register (high byte)
Port 0 control register (low byte)
Port 0 pull-up resistor enable register
Port 1 control register (high byte)
Port 1 control register (low byte)
Port 1 pull-up resistor enable register
Port 2 control register (high byte)
Port 2 control register (low byte)
Port 2 pull-up resistor enable register
Port 3 control register (high byte)
Port 3 control register (low byte)
Port 3 Pull-up resistor enable register
Port 0 data register
Port 1 data register
Port 2 data register
Port 3 data register
Port 4 data register
Port 5 data register
Port 6 data register
External interrupt pending register
External interrupt control register (high byte)
External interrupt control register (low byte)
STOP control register
Basic timer counter
Interrupt priority register
4-2
Table 4-2. Set 1, Bank 0 Registers
Mnemonic
OSCCON
SIOCON
SIODATA
SIOPS
P0CONH
P0CONL
P0PUR
P1CONH
P1CONL
P1PUR
P2CONH
P2CONL
P2PUR
P3CONH
P3CONL
P3PUR
P0
P1
P2
P3
P4
P5
P6
EXTIPND
EXTICONH
EXTICONL
Locations FAH are not mapped.
STPCON
Locations FCH are not mapped.
BTCNT
Locations FEH are not mapped.
IPR
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
Address
Decimal
Hex
224
E0H
225
E1H
226
E2H
227
E3H
228
E4H
229
E5H
230
E6H
231
E7H
232
E8H
233
E9H
234
EAH
235
EBH
236
ECH
237
EDH
238
EEH
239
EFH
240
F0H
241
F1H
242
F2H
243
F3H
244
F4H
245
F5H
246
F6H
247
F7H
248
F8H
249
F9H
251
FBH
253
FDH
255
FFH
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R/W
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