Toshiba H1 Series Data Book page 159

bit Symbol PN7
PN
(005CH) Read/Write
After reset
bit Symbol PN7C
PNCR
Read/Write
(005EH)
After reset
Function
bit Symbol PN7F
PNFC
Read/Write
(005FH)
After reset
Function
bit Symbol PN7D
PNDR
(0097H) Read/Write
After reset
Function
Note 1: Read-Modify-Write is prohibited for the registers PNCR and PNFC.
7 6 5
PN6 PN5
Data from external port (Output latch register is set to "1")
Port N control register
7 6 5
PN6C PN5C
0 0 0
Port N function register
7 6 5
PN6F PN5F
0 0 0
0: CMOS output 1: Open-drain output
Port N drive register
7 6 5
PN6D PN5D
1 1 1
Input/Output buffer drive register for standby mode
Figure 3.7.43 Register for Port N
92CZ26A-156
Port N register
4 3
PN4 PN3
R/W
4 3
PN4C PN3C
W
0 0
0: Input 1: Output
4 3
PN4F PN3F
W
0 0
4 3
PN4D PN3D
R/W
1 1
TMP92CZ26A
2 1 0
PN2 PN1 PN0
2 1 0
PN2C PN1C PN0C
0 0 0
2 1 0
PN2F PN1F PN0F
0 0 0
2 1 0
PN2D PN1D PN0D
1 1 1