Toshiba H1 Series Data Book page 171

PU
Bit Symbol
(00A4H)
Read/Write
After reset
Bit Symbol PU7C
PUCR
Read/Write
(00A6H)
After reset
Function
Bit Symbol
PUFC
Read/Write
(00A7H)
After reset
Function 0: Port
1: LD23
Note: When PU is used as LD23 to LD16, set applicable PUnC to "1".
PU7D
PUDR
Bit Symbol
(009CH)
Read/Write
After reset
Function
Note1: Read-Modify-Write is prohibited for the registers PUCR, PUFC.
Note2: When use PU as LD23 to LD16, set PUnC to "1". When use PU5 as LD21, set PU5C to "1".
7 6 5
PU7 PU6 PU5
Data from external port (Output latch register is cleared to "0")
Port U control register
7 6 5
PU6C PU5C
0 0 0
Port U function register
7 6 5
PU7F PU6F PU5F
0 0 0
0: Port 0: Port
1: LD22
1:
LD21@
<PU5C>=1
Port U drive register
7 6 5
PU6D PU5D
1 1 1
Input/Output buffer drive register for standby mode
Figure 3.7.56 Register for Port U
Port U register
4 3
PU4 PU3
R/W
4 3
PU4C PU3C
W
0 0
0: Input 1: Output
4 3
PU4F PU3F
W
0 0
0: Port 0: Port
1: LD20 1: LD19
4 3
PU4D PU3D
R/W
1 1
92CZ26A-168
TMP92CZ26A
2 1
PU2 PU1 PU0
2 1
PU2C PU1C PU0C
0 0
2 1
PU2F PU1F PU0F
0 0
0: Port 0: Port 0: Port
1: LD18 1: LD17
1: LD16
2 1
PU2D PU1D PU0D
1 1
0
0
0
0
0
0
1