Toshiba H1 Series Data Book page 165

Reset
Direction
control
(on bit basis)
PRCR write
Function
control
(on bit basis)
PRFC write
R
A
Output latch
Selector
B
PR write
SPDO,
SPCS ,
SPCLK
PR read
Figure 3.7.50 Port R1 to R3
92CZ26A-162
S
S
B
Selector
A
TMP92CZ26A
PR1(SPDO),
PR2( SPCS ),
PR3(SPCLK)