ATA8742 ATMEL Corporation, ATA8742 Datasheet - Page 40
ATA8742
Manufacturer Part Number
ATA8742
Description
Manufacturer
ATMEL Corporation
Datasheet
1.ATA8742.pdf
(238 pages)
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13.5.5
13.5.6
13.5.7
40
ATA8742
GPIOR2 – General Purpose I/O Register 2
GPIOR1 – General Purpose I/O Register 1
GPIOR0 – General Purpose I/O Register 0
EEPROM read. The EEPROM read access takes one instruction, and the requested data is
available immediately. When the EEPROM is read, the CPU is halted for four cycles before the
next instruction is executed. The user should poll the EEPE bit before starting the read opera-
tion. If a write operation is in progress, it is neither possible to read the EEPROM, nor to change
the EEAR Register.
Bit
0x15 (0x35)
Read/Write
Initial Value
Bit
0x14 (0x34)
Read/Write
Initial Value
Bit
0x13 (0x33)
Read/Write
Initial Value
MSB
MSB
MSB
R/W
R/W
R/W
7
0
7
0
7
0
R/W
R/W
R/W
6
0
6
0
6
0
R/W
R/W
R/W
5
0
5
0
5
0
R/W
R/W
R/W
4
0
4
0
4
0
R/W
R/W
R/W
3
0
3
0
3
0
R/W
R/W
R/W
2
0
2
0
2
0
R/W
R/W
R/W
1
0
1
0
1
0
LSB
LSB
LSB
R/W
R/W
R/W
9151A–INDCO–07/09
0
0
0
0
0
0
GPIOR2
GPIOR1
GPIOR0
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