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7477 датащи(PDF) 46 Page - Renesas Technology Corp

номер детали 7477
подробное описание детали  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
PDF  361 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7477 датащи(HTML) 46 Page - Renesas Technology Corp

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7470/7471/7477/7478 GROUP USER’S MANUAL
HARDWARE
1.10 I/O pins
1-39
Fig. 1.10.4 Structure of Ports P1 to P5 pull-up control register
b7 b6 b5 b4 b3 b2 b1 b0
Name
b
Function
0
1
At reset
R W
0
0
Ports P1 to P5 pull-up control register [Address
Ports P1 to P5 pull-up control register
3
0
4
0
2
5
0 : No pull-up
1 : Pull-up
6
0
7
0
Notes
Ports P10 to P13
pull-up control bit
Ports P40 to P43 pull-up
control bit
(Note 4)
Ports P24 to P27 pull-up
control bit
(Notes 2, 3)
Ports P20 to P23 pull-up
control bit
(Note 2)
Ports P14 to P17
pull-up control bit
!
!
1 : In the 7470/7477 group, the P1 to P4 Pull-up control register
is provided.
2 : In the 7477/7478 group, nothing is allocated to these bits.
They are undefined at reading.
3 : In the 7470/7477 group, nothing is allocated to these bits.
They are undefined at reading.
4 : The 7470/7477 group is provided with only
??
??
Nothing is allocated for this bit. This is write
disabled bit and is undefined at reading.
Nothing is allocated for this bit. This is write
disabled bit and is undefined at reading.
Ports P50 to P53 pull-up
control bit
(Note 3)
0 : No pull-up
1 : Pull-up
0 : No pull-up
1 : Pull-up
0 : No pull-up
1 : Pull-up
0 : No pull-up
1 : Pull-up
0 : No pull-up
1 : Pull-up
00D116]
P40 and P41.



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