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38C3 Datasheet(PDF) 71 Page - Renesas Technology Corp

Part # 38C3
Description  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  224 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

38C3 Datasheet(HTML) 71 Page - Renesas Technology Corp

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2-6
38C3 Group User’s Manual
APPLICATION
2.1 I/O port
Fig. 2.1.8 Structure of PULL register B
Fig. 2.1.9 Structure of Port P8 output selection register
PULL register B
b7 b6 b5 b4 b3 b2 b1 b0
PULL register B
(PULLB: address 1716)
0: No pull-up control
1: Pull-up control
b
0
1
2
3
4
7
Name
Functions
At reset R W
0: No pull-up control
1: Pull-up control
0: No pull-up control
1: Pull-up control
0
0
0
0
0
0
Port P40–P43
pull-up control
Port P44–P47
pull-up control
Port P60–P63
pull-up control
Port P54–P57
pull-up control
Port P50, P52, P53
pull-up control
Port P64–P67
pull-up control
Nothing is arranged for this bit. This is a write
disabled bit. When this bit is read out, the
contents are “0”.
Nothing is arranged for this bit. This is a write
disabled bit. When this bit is read out, the
contents are “0”.
0
0
5
6
0: No pull-up control
1: Pull-up control
0: No pull-up control
1: Pull-up control
Note: The pin which is set to output port is cut off from pull-up control.
0: No pull-up control
1: Pull-up control
Port P8 output selection register
b7 b6 b5 b4 b3 b2 b1 b0
Port P8 output selection register (P8SEL: address 1816)
b
0
Name
Functions
At reset R W
0
Port P8 output
selection register
0
0
0
0
0
0
0
1
2
3
4
7
5
0: CMOS output (in output mode)
1: N-channel open-drain
output (in output mode)
0: CMOS output (in output mode)
1: N-channel open-drain
output (in output mode)
0: CMOS output (in output mode)
1: N-channel open-drain
output (in output mode)
0: CMOS output (in output mode)
1: N-channel open-drain
output (in output mode)
0: CMOS output (in output mode)
1: N-channel open-drain
output (in output mode)
0: CMOS output (in output mode)
1: N-channel open-drain
output (in output mode)
0: CMOS output (in output mode)
1: N-channel open-drain
output (in output mode)
0: CMOS output (in output mode)
1: N-channel open-drain
output (in output mode)
6



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