SN8F2280 Series
USB 2.0 Full-Speed 8-Bit Micro-Controller
7.2 I/O PULL UP REGISTER
0E0H
P0UR
Read/Write
After reset
Bit 7
P07R
W
Bit 6
P06R
W
Bit 5
P05R
W
Bit 4
P00R
W
Bit 3
P03R
W
Bit 2
P02R
W
Bit 1
P01R
W
Bit 0
P00R
W
0
0
0
0
0
0
0
0
0E1H
P1UR
Read/Write
After reset
Bit 7
P17R
W
Bit 6
P16R
W
Bit 5
P15R
W
Bit 4
P16R
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
0E4H
P4UR
Read/Write
After reset
Bit 7
P47R
W
Bit 6
P46R
W
Bit 5
P45R
W
Bit 4
P44R
W
Bit 3
P43R
W
Bit 2
P42R
W
Bit 1
P41R
W
Bit 0
P40R
W
0
0
0
0
0
0
0
0
0E5H
P5UR
Read/Write
After reset
Bit 7
Bit 6
Bit 5
P55R
W
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
0
¾
Note: P0.4 is input only pin with pull-up resister.
Example: I/O Pull up Register
MOV
A, #0FFH
P0UR, A
P1UR, A
P5UR, A
; Enable Port0, 1, 5 Pull-up register,
;
B0MOV
B0MOV
B0MOV
SONiX TECHNOLOGY CO., LTD
Page 81
Version 1.1
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