Toshiba H1 Series Data Book page 151

3.7.13 Port K (PK0 to PK7)
PK0 to PK7 are 8-bit output ports. Resetting sets the output latch PK to "0", and PK0 to
PK7 pins output "0". In addition to functioning as output port function, Port K also
function as output pins for LCD controller (LCP0, LHSYNC, LLOAD, LFR, LVSYNC, and
LGOE0 to LGOE2).
Above setting is used the function register PKFC.
Reset
Function control
(on bit basis)
PKFC write
A
Output latch
B
PK write
LCP0, LLOAD, LFR, LVSYNC,LHSYNC,LGOE0 to LGOE2
PK read
Figure 3.7.34 Port K0 to K7
92CZ26A-148
S
Output buffer
TMP92CZ26A
PK0 (LCP0)
PK1 (LLOAD)
PK2 (LFR)
PK3 (LVSYNC)
PK4 (LHSYNC)
PK5 (LGOE0)
PK6 (LGOE1)
PK7 (LGOE2)