Product data

HD404818 Series
44
PMRA (port mode register A) ADR: $004
3210
R0 /SO pin mode selection
2
R0 /SI pin mode selection
1
R3 /INT pin mode selection
2
R3 /INT pin mode selection
3
0
1
Port
select
Bit 3
0
1
R3
INT
3
PMRA
1
Bit 2
PMRA
0
1
R3
INT
2
0
Port
select
Bit 1
PMRA
0
1
R0
SI
1
Port
select
Bit 0
PMRA
0
1
R0
SO
2
Port
select
Pull-up MOS
on/off
Bit 3
0
1
Off
On
PMRB
Bit 2
PMRB
0
1
R3
TIMO
1
Port
select
Bit 1
PMRB
0
1
D
COMP
1
13
Port
select
Bit 0
PMRB
0
1
D
COMP
0
12
Port
select
D /COMP
0
pin mode selection
12
13
1
0321
PMRB (port mode register B) ADR: $012
D /COMP
1
pin mode selection
R3 /TIMO pin mode selection
Pull-up MOS on/off selection
Port
select
Bit 3
0
1
R0
SCK
0
SMR
SMR (serial mode register) ADR: $005
R0 /SCK pin mode selection
0
3210
Figure 23 I/O Select Mode Registers