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7220 датащи(PDF) 156 Page - Renesas Technology Corp

номер детали 7220
подробное описание детали  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  303 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7220 датащи(HTML) 156 Page - Renesas Technology Corp

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M37220M3-XXXSP/FP
4.5 Functional description
7220 Group User’s Manual
4-18
Fig. 4.5.8 DA n conversion register (addresses 00DE16 and 00DF16)
Fig. 4.5.9 Port P3 output mode control register (address 00CD16)
b7 b6 b5 b4 b3 b2 b1 b0
DA n conversion register (DAn) (n = 1 and 2) [Address 00DE16, 00DF16]
B
After reset
R W
DA n Conversion Register
0
to
5
6
Indeterminate
0
Name
Functions
DA conversion set
bits
(DAn0–DAn5)
b0
b1
b2
b3
b4
b5
Fix this bit to “0.”
1
0000
00
0000
0
0
0000
0
0
111
1
1
1111
1
1
1111
11
: 1/64Vcc
: 2/64Vcc
: 61/64Vcc
: 62/64Vcc
: 63/64Vcc
: 0/64Vcc
7
0
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “ 0.”
RW
R—
R—
0
b7 b6 b5 b4 b3 b2 b1 b0
Port P3 output mode control register (P3S) [address 00CD16]
B
Name
Functions
After reset R W
Port P3 Output Mode Control Register
0
0 : CMOS output
1 : N-channel open-drain output
0
1
0
0
4
to
7
0
P30 output structure
selection bit (P30S)
P31 output structure
selection bit (P31S)
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
0 : CMOS output
1 : N-channel open-drain output
2
DA1 output enable bit
(DA1S)
0 : P30 input/output
1 : DA1 output
0
3
DA2 output enable bit
(DA2S)
0 : P31 input/output
1 : DA2 output
RW
RW
RW
RW
R—



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