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AT91SAM7A2-AI bảng dữ liệu(PDF) 46 Page - ATMEL Corporation

tên linh kiện AT91SAM7A2-AI
Giải thích chi tiết về linh kiện  AT91 ARM Thumb-based Microcontrollers
PDF  369 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT91SAM7A2-AI bảng dữ liệu(HTML) 46 Page - ATMEL Corporation

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46
PRELIMINARY
AT91SAM7A2
6021A–ATARM–07/04
AMC Chip Select Register
Name:
AMC_CSR1...AMC_CSR3
Access:
Read/Write
Base Address:
0x004, 0x008, 0x01C
• BA[9:0]: Base Address
Bits [31:30] are set by hardware, so the base address can only be in the memory space 0x40000000-0x7FFFFFFF. The
other bits contain the highest bits of the base address. If the page size is larger than 1Mbyte, the unused bits of the base
address are ignored by the AMC decoder.
• CSEN: Chip Select Enable
0: Chip select is disabled.
1: Chip select is enabled.
• BAT: Byte Access Type
0: Byte write access type.
1: Byte select access type.
• TDF[2:0]: Data Float Output Time
These bits select the number of cycles added after a memory transfer.
31
30
29
28
27
26
25
24
–
–
BA[9:4]
23
22
21
20
19
18
17
16
BA[3:0]
––
––
15
14
13
12
11
10
9
8
–
–
CSEN
BAT
TDF[2:0]
PAGES1
76
543
21
0
PAGES0
–
WSE
NWS[2:0]
DBW[1:0]
TDF[2:0]
Cycles Added
000
0
001
1
010
2
011
3
100
4
101
5
110
6
111
7



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