CHAPTER 14 PORT FUNCTION
User’s Manual U13850EJ4V0UM
386
(b) Pull-up resistor option register 2 (PU2)
PU2 can be read/written in 8-/1-bit units.
Figure 14-15. Pull-Up Resistor Option Register 2 (PU2)
After reset:
00H
R/W
Address: FFFFF084H
7
6
5
4
3
2
1
0
PU2
PU27
PU26
PU25
PU24
PU23
PU22
PU21
PU20
PU2n
Control of on-chip pull-up resistor connection (n = 0 to 7)
0
Do not connect
1
Connect
(c) Port 2 function register (PF2)
PF2 can be read/written in 8-/1-bit units.
Figure 14-16. Port 2 Function Register (PF2)
After reset:
00H
R/W
Address: FFFFF0A4H
7
6
5
4
3
2
1
0
PF2
0
0
PF25
PF24
0
PF22
PF21
PF20
PF2n
Control of normal output/N-ch open-drain output (n = 0 to 2, 4, 5)
0
Normal output
1
N-ch open-drain output
Содержание MPD703030A
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