Datasheet

78K0/Ix2 CHAPTER 4 PORT FUNCTIONS
R01UH0010EJ0500 Rev.5.00 139
Feb 28, 2012
Figure 4-32. Format of Pull-up Resistor Option Register (78K0/IA2)
7
0
Symbol
PU0
6
0
5
0
4
0
3
0
2
0
1
0
0
PU00
Address
FF30H
After reset
00H
R/W
R/W
0
PU3
0 0 PU34 PU33 PU32 PU31 0
FF33H 00H R/W
0
PU6
0 0 0 0 0 PU61 PU60
FF36H 00H R/W
0
PU12
0 PU125 0 0 0 0 0
FF3CH 20H R/W
PUmn
Pmn pin on-chip pull-up resistor selection
(m = 0, 3, 6, 12; n = 0 to 5)
0 On-chip pull-up resistor not connected
1 On-chip pull-up resistor connected
Figure 4-33. Format of Pull-up Resistor Option Register (78K0/IB2)
7
0
Symbol
PU0
6
0
5
0
4
0
3
0
2
PU02
1
PU01
Note
0
PU00
Address
FF30H
After reset
00H
R/W
R/W
PU37
PU3
PU36 PU35 PU34 PU33 PU32 PU31 PU30
Note
FF33H 00H R/W
0
PU6
0 0 0 0 0 PU61 PU60
FF36H 00H R/W
0
PU12
0 PU125 0 0 0 0 0
FF3CH 20H R/W
PUmn
Pmn pin on-chip pull-up resistor selection
(m = 0, 3, 6, 12; n = 0 to 7)
0 On-chip pull-up resistor not connected
1 On-chip pull-up resistor connected
Note 78K0/IB2 (30 pins) only