HD6417751 Datasheet, PDF (761/1105 Pages) Renesas Technology Corp – SuperH RISC engine

Bit: 31
PB31PUP
Initial value: 0
R/W: R
30
PB31IO
0
R
29
PB30PUP
0
R
28
PB30IO
0
R
27
PB29PUP
0
R
26
PB29IO
0
R
25
PB28PUP
0
R
24
PB28IO
0
R
Bit: 23
22
21
20
19
18
17
16
PB27PUP PB27IO PB26PUP PB26IO PB25PUP PB25IO PB24PUP PB24IO
Initial value: 0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R
Bit: 15
PB23PUP
Initial value: 0
R/W: R
14
PB23IO
0
R
13
PB22PUP
0
R
12
PB22IO
0
R
11
PB21PUP
0
R
10
PB21IO
0
R
9
PB20PUP
0
R
8
PB20IO
0
R
Bit: 7
PB19PUP
Initial value: 0
R/W: R/W
6
PB19IO
0
R/W
5
PB18PUP
0
R/W
4
PB18IO
0
R/W
3
PB17PUP
0
R/W
2
PB17IO
0
R/W
1
PB16PUP
0
R/W
0
PB16IO
0
R/W
Bit 2n + 1 (n = 0–15)—Port Pull-Up Control (PBnPUP): Specifies whether each bit in the 16-
bit port B is to be pulled up with a built-in resistor. Pull-up is automatically turned off for a port
pin set to output by bit PBnIO.
Bit 2n + 1: PBnPUP
0
1
Description
Bit m (m = 16–31) of 16-bit port B is pulled up
Bit m (m = 16–31) of 16-bit port B is not pulled up
(Initial value)
Bit 2n (n = 0–15)—Port I/O Control (PBnIO): Specifies whether each bit in the 16-bit port B is
an input or an output.
Bit 2n: PBnIO
0
1
Description
Bit m (m = 16–31) of 16-bit port B is an input
Bit m (m = 16–31) of 16-bit port B is an output
(Initial value)
Rev. 3.0, 04/02, page 721 of 1064