Toshiba TLCS-900/L1 Series Manual page 77

3.5.9 Port D (PD0 to PD7)
Port D is an 8-bit output port. Resetting sets the output latch PD to 1, and PD5 to PD7
pin output 1.
In addition to functioning as output port, port D also function as output pin for output
pin for internal clock (SCOUT), output pin for RTC alarm (
melody/alarm generator (MLDALM,
register PDFC.
Only PD6 has two output functions which
PD<PD6>. Resetting resets the function register PDFC to 0, and sets all ports to output
ports.
Reset
Function control
(on bit basis)
PDFC write
Output latch
MLDALM
S
A
B
PD write
MLDALM
PD read
Figure 3.5.23 Port D
Reset
Function control
(on bit basis)
PDFC write
S
Output latch
PD write
PD read
A
Fs clock
Y
Selector
B
f clock
SYS
S
SYSCR2<SCOSEL>
Figure 3.5.24 Port D
91C824-75
ALARM
). Above setting is used the function
and
ALARM MLDALM
PD7 (MLDALM)
Output buffer
S
A
Y
Selector
B
TMP91C824
) and output pin for
. This selection is used
PD5 (SCOUT)
2008-02-20