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SIC63616-(Rev. 1.0) NO. P19
3240-0412
Table 4.1.1 (c) I/O memory map (FF21H-FF28H)
FF21H
R/W
IOC03
IOC02
IOC01
IOC00
0
0
0
0
Output
Output
Output
Output
Input
Input
Input
Input
P03 I/O control register
functions as a general-purpose register when R/f or BZ is used
P02 I/O control register
functions as a general-purpose register when R/f is used
P01 I/O control register
functions as a general-purpose register when R/f is used
P00 I/O control register
functions as a general-purpose register when R/f is used
FF26H
PUL13 PUL12 PUL11 PUL10
R/W
PUL13
PUL12
PUL11
PUL10
1
1
1
1
On
On
On
On
Off
Off
Off
Off
P13 pull-down control register
functions as a general-purpose register when TOUT_A is used
P12 pull-down control register
P11 pull-down control register
P10 pull-down control register
FF27H
SMT13 SMT12 SMT11 SMT10
R/W
SMT13
SMT12
SMT11
SMT10
1
1
1
1
Schmitt
Schmitt
Schmitt
Schmitt
CMOS
CMOS
CMOS
CMOS
P13 input interface level select register
functions as a general-purpose register when TOUT_A is used
P12 input interface level select register
P11 input interface level select register
P10 input interface level select register
FF24H
P13
(TOUT_A)
P12
P11
P10
R/W
P13
P12
P11
P10
1
1
1
1
High
High
High
High
Low
Low
Low
Low
P13 I/O port data
functions as a general-purpose register when TOUT_A is used
P12 I/O port data
P11 I/O port data
P10 I/O port data
FF25H
IOC13 IOC12 IOC11 IOC10
R/W
IOC13
IOC12
IOC11
IOC10
0
0
0
0
Output
Output
Output
Output
Input
Input
Input
Input
P13 I/O control register
functions as a general-purpose register when TOUT_A is used
P12 I/O control register
P11 I/O control register
P10 I/O control register
Address
Comment
D3
D2
Register
D1
D0
Name Init
∗
1
1
0
IOC03 IOC02 IOC01 IOC00
FF22H
R/W
PUL03
PUL02
PUL01
PUL00
1
1
1
1
On
On
On
On
Off
Off
Off
Off
P03 pull-down control register
functions as a general-purpose register when R/f or BZ is used
P02 pull-down control register
functions as a general-purpose register when R/f is used
P01 pull-down control register
functions as a general-purpose register when R/f is used
P00 pull-down control register
functions as a general-purpose register when R/f is used
PUL03 PUL02 PUL01 PUL00
FF23H
R/W
SMT03
SMT02
SMT01
SMT00
1
1
1
1
1
1
1
1
0
0
0
0
General-purpose register
General-purpose register
General-purpose register
General-purpose register
SMT03 SMT02 SMT01 SMT00
FF28H
P23
(SS/
SRDY/
FOUT)
P22
(SIN)
P21
(SOUT)
P20
(SCLK)
R/W
P23
P22
P21
P20
1
1
1
1
High
High
High
High
Low
Low
Low
Low
P23 I/O port data
functions as a general-purpose register when SIF (slave, SRDY)
or FOUT is used
P22 I/O port data
P21 I/O port data
functions as a general-purpose register when SIF is used
P20 I/O port data
functions as a general-purpose register when SIF (master) is used
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