at75c220 ATMEL Corporation, at75c220 Datasheet - Page 71
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at75c220
Manufacturer Part Number
at75c220
Description
Smart Internet Appliance Processor Siap
Manufacturer
ATMEL Corporation
Datasheet
1.AT75C220.pdf
(144 pages)
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PIO Output Data Status Register
Register Name:PIO_ODSR
Access Type:Read-only
Reset Value:0
This register shows the output data status which is programmed in PIO_SODR or PIO_CODR. The defined value is effec-
tive only if the pin is controlled by the PIO Controller and only if the pin is defined as an output.
PIO Pin Data Status Register
Register Name:PIO_PDSR
Access Type:Read-only
Reset Value:Undefined
This register shows the state of the physical pin of the chip. The pin values are always valid, regardless of whether the pins
are enabled as PIO, peripheral, input or output. The register reads as follows:
1 = The output data for the corresponding line is programmed to 1.
0 = The output data for the corresponding line is programmed to 0.
1 = The corresponding pin is at logic 1.
0 = The corresponding pin is at logic 0.
P31
P23
P15
P31
P23
P15
31
23
15
P7
31
23
15
P7
7
7
P30
P22
P14
P30
P22
P14
30
22
14
P6
30
22
14
P6
6
6
P29
P21
P13
P29
P21
P13
P5
P5
29
21
13
29
21
13
5
5
P28
P20
P12
P28
P20
P12
P4
P4
28
20
12
28
20
12
4
4
P27
P19
P11
P27
P19
P11
P3
P3
27
19
11
27
19
11
3
3
P26
P18
P10
P26
P18
P10
P2
P2
26
18
10
26
18
10
2
2
P25
P17
P25
P17
P9
P1
P9
P1
25
17
25
17
9
1
9
1
P24
P16
P24
P16
24
16
P8
P0
24
16
P8
P0
8
0
8
0
71
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