SN8P2604A
8-Bit Micro-Controller
7.2 I/O PULL UP REGISTER
0E0H
P0UR
Read/Write
After reset
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
P01R
W
Bit 0
P00R
W
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0E1H
P1UR
Read/Write
After reset
Bit 7
P17R
W
Bit 6
P16R
W
Bit 5
P15R
W
Bit 4
P14R
W
Bit 3
P13R
W
Bit 2
P12R
W
Bit 1
P11R
W
Bit 0
P10R
W
0
0
0
0
0
0
0
0
0E2H
P2UR
Read/Write
After reset
Bit 7
P27R
W
Bit 6
P26R
W
Bit 5
P25R
W
Bit 4
P24R
W
Bit 3
P23R
W
Bit 2
P22R
W
Bit 1
P21R
W
Bit 0
P20R
W
0
0
0
0
0
0
0
0
0E5H
P5UR
Read/Write
After reset
Bit 7
Bit 6
Bit 5
Bit 4
P54R
W
Bit 3
P53R
W
Bit 2
P52R
W
Bit 1
P51R
W
Bit 0
P50R
W
-
-
-
-
-
-
-
-
-
0
0
0
0
0
¾
Note: P0.2 is input only pin and without pull-up resister. The P0UR.2 keeps “1”.
Example: I/O Pull up Register
MOV
A, #0FFH
P0UR, A
P1UR, A
P2UR, A
P5UR, A
; Enable Port0, 1, 2, 5 Pull-up register,
;
B0MOV
B0MOV
B0MOV
B0MOV
SONiX TECHNOLOGY CO., LTD
Page 69
Version 0.3
SONIX [ SONIX TECHNOLOGY COMPANY ]
