Toshiba H1 Series Data Book page 170

Reset
Direction
control
(on bit basis)
PUCR wirte
Function
control
(on bit basis)
PUFC write
R
S
A
Output latch
Selector
B
PU write
LD21
S
B
Selector
PU read
A
Figure 3.7.55 Port U5
92CZ26A-167
TMP92CZ26A
PU5 (LD21)