6 control of i/o ports – Epson S1C88650 User Manual
Page 65
S1C88650 TECHNICAL MANUAL
EPSON
57
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (I/O Ports)
5.7.6 Control of I/O ports
Table 5.7.6.1 shows the I/O port control bits.
Table 5.7.6.1(a) I/O port control bits
00FF61 D7
D6
D5
D4
D3
D2
D1
D0
IOC17
IOC16
IOC15
IOC14
IOC13
IOC12
IOC11
IOC10
P17 I/O control register
P16 I/O control register
P15 I/O control register
P14 I/O control register
P13 I/O control register
P12 I/O control register
P11 I/O control register
P10 I/O control register
0
R/W
Output
Input
00FF62 D7
D6
D5
D4
D3
D2
D1
D0
P07D
P06D
P05D
P04D
P03D
P02D
P01D
P00D
P07 I/O port data
P06 I/O port data
P05 I/O port data
P04 I/O port data
P03 I/O port data
P02 I/O port data
P01 I/O port data
P00 I/O port data
1
R/W
High
Low
00FF60 D7
D6
D5
D4
D3
D2
D1
D0
IOC07
IOC06
IOC05
IOC04
IOC03
IOC02
IOC01
IOC00
P07 I/O control register
P06 I/O control register
P05 I/O control register
P04 I/O control register
P03 I/O control register
P02 I/O control register
P01 I/O control register
P00 I/O control register
0
R/W
Output
Input
Address Bit
Name
SR R/W
Function
Comment
1
0
00FF63 D7
D6
D5
D4
D3
D2
D1
D0
P17D
P16D
P15D
P14D
P13D
P12D
P11D
P10D
P17 I/O port data
P16 I/O port data
P15 I/O port data
P14 I/O port data
P13 I/O port data
P12 I/O port data
P11 I/O port data
P10 I/O port data
1
R/W
High
Low
00FF64 D7
D6
D5
D4
D3
D2
D1
D0
PULP07
PULP06
PULP05
PULP04
PULP03
PULP02
PULP01
PULP00
P07 pull-up control register
P06 pull-up control register
P05 pull-up control register
P04 pull-up control register
P03 pull-up control register
P02 pull-up control register
P01 pull-up control register
P00 pull-up control register
1
R/W
On
Off
00FF65 D7
D6
D5
D4
D3
D2
D1
D0
PULP17
PULP16
PULP15
PULP14
PULP13
PULP12
PULP11
PULP10
P17 pull-up control register
P16 pull-up control register
P15 pull-up control register
P14 pull-up control register
P13 pull-up control register
P12 pull-up control register
P11 pull-up control register
P10 pull-up control register
1
R/W
On
Off