TMP91C824
91C824-74
In
te
rn
a
l d
a
ta
b
u
s
/MLDALM
Reset
S
Output latch
PD write
PD read
Function control
(On bit basis)
PDFC write
S
A
Y
Selector
B
/ALARM
PD6 (/ALARM,
/MLDALM)
A S
Y
Selector
B
Figure 3.5.25 Port D
Port D register
7
6
5
4
3
2
1
0
bit Symbol
PD7
PD6
PD5
Read/Write
R/W
After Reset
1
1
1
Port D function register
7
6
5
4
3
2
1
0
bit Symbol
PD7F
PD6F
PD5F
Read/Write
W
After Reset
0
Function
0: PORT
1: MLDALM
0: PORT
1: /ALARM
@<PD6>=1
1: /MLDALM
@<PD6>=0
0: PORT
1: SCOUT
PD
(0029H)
PDFC
(002AH)
(note): Read-Modify-Write is prohibited for the registers PDFC.
Figure 3.5.26 Register for Port D