Toshiba H1 Series - Manual (Page 167)

TMP92CZ26A
92CZ26A-164
3.7.19 Port T (PT0 to PT7)
Port T0 to T7 are 8-bit general-purpose I/O ports. Each bit can be set individually for
input or output. Resetting sets port T0 to T7 to input port and output latch to “0”. In
addition to functioning as general-purpose I/O port pins, PT0 to PT7 can also function as
data bus pin for LCD controller (LD8 to LD15).
Above setting is used the control register PTCR and function register PTFC.
Figure 3.7.52 Port T0 to T7
Selector
A
B
S
Selector
A
B S
PT0 to PT7
(LD8 to LD15)
PT read
Direction
control
(on bit basis)
PTCR write
Function
control
(on bit basis)
PTFC write
S
Output latch
PT write
Reset
LD8 to LD15
Internal dat
a
bus