Control Of Input Ports - Epson S1C88650 Technical Manual

5.5.5 Control of input ports

Table 5.5.5.1 shows the input port control bits.
Address Bit Name
00FF52 D7 KCP07
K07 input comparison register
D6 KCP06
K06 input comparison register
D5 KCP05
K05 input comparison register
D4 KCP04
K04 input comparison register
D3 KCP03
K03 input comparison register
D2 KCP02
K02 input comparison register
D1 KCP01
K01 input comparison register
D0 KCP00
K00 input comparison register
00FF54 D7 K07D
K07 input port data
D6 K06D
K06 input port data
D5 K05D
K05 input port data
D4 K04D
K04 input port data
D3 K03D
K03 input port data
D2 K02D
K02 input port data
D1 K01D
K01 input port data
D0 K00D
K00 input port data
00FF56 D7 PULK07
K07 pull-up control register
D6 PULK06
K06 pull-up control register
D5 PULK05
K05 pull-up control register
D4 PULK04
K04 pull-up control register
D3 PULK03 K03 pull-up control register
D2 PULK02
K02 pull-up control register
D1 PULK01 K01 pull-up control register
D0 PULK00
K00 pull-up control register
00FF58 D7 – –
D6 CTK02H
K04–K07 port chattering-eliminate setup
(Input level check time)
D5 CTK01H
D4 CTK00H
D3 –
–
D2 CTK02L K00–K03 port chattering-eliminate setup
(Input level check time)
D1 CTK01L
D0 CTK00L
S1C88650 TECHNICAL MANUAL
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Input Ports)
Table 5.5.5.1(a) Input port control bits
Function
CTK02H CTK01H CTK00H
1
1
1
1
0
0
0
0
CTK02L CTK01L CTK00L
1
1
1
1
0
0
0
0
1
Interrupt
generated
at falling
edge
High level Low level
input
On
–
Check time
[sec]
4/f
OSC3
2/f
OSC3
1/f
OSC3
4096/f
OSC1
2048/f
OSC1
512/f
OSC1
128/f
OSC1
None
–
Check time
[sec]
4/f
OSC3
2/f
OSC3
1/f
OSC3
4096/f
OSC1
2048/f
OSC1
512/f
OSC1
128/f
OSC1
None
EPSON
0 SR R/W Comment
Interrupt
generated
1 R/W
at rising
edge
– R
input
1 R/W
Off
–
– "0" when being read
0 R/W
0 R/W
0 R/W
–
– "0" when being read
0 R/W
0 R/W
0 R/W
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