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ATmega1284P 데이터시트(PDF) 29 Page - ATMEL Corporation

부품명 ATmega1284P
상세설명  8-bit Microcontroller with 16/32/64/128K Bytes In-Sytem Programmable Flash
PDF  468 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega1284P 데이터시트(HTML) 29 Page - ATMEL Corporation

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29
8152G–AVR–11/09
ATmega164PA/324PA/644PA/1284P
7.6.4
GPIOR2 – General Purpose I/O Register 2
7.6.5
GPIOR1 – General Purpose I/O Register 1
7.6.6
GPIOR0 – General Purpose I/O Register 0
Note:
1. SRWn1 = SRW11 (upper sector) or SRW01 (lower sector), SRWn0 = SRW10 (upper sector) or
SRW00 (lower sector). The ALE pulse in period T4 is only present if the next instruction
accesses the RAM (internal or external).
Bit
7
6
543210
0x2B (0x4B)
MSB
LSB
GPIOR2
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
000000
Bit
76543210
0x2A (0x4A)
MSB
LSB
GPIOR1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
00000000
Bit
7
6
543210
0x1E (0x3E)
MSB
LSB
GPIOR0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
000000



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