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1745D–ATARM–04-Nov-05
AT91M55800A
11.10.1 EBI Chip Select Register
Register Name: EBI_CSR0 - EBI_CSR7
Access Type: Read/Write
Reset Value: See Table 11-2
Absolute Address: 0xFFE00000 - 0xFFE0001C
• DBW: Data Bus Width
• NWS: Number of Wait States
This field is valid only if WSE is set.
• WSE: Wait State Enable (Code Label EBI_WSE)
0 = Wait state generation is disabled. No wait states are inserted.
1 = Wait state generation is enabled.
31 30 29 28 27 26 25 24
BA
23 22 21 20 19 18 17 16
BA ––––
15 14 13 12 11 10 9 8
––CSENBAT TDF PAGES
76543210
PAGES – WSE NWS DBW
DBW Data Bus Width
Code Label
EBI_DBW
0 0 Reserved –
0 1 16-bit data bus width EBI_DBW_16
1 0 8-bit data bus width EBI_DBW_8
1 1 Reserved –
NWS Number of Standard Wait States
Code Label
EBI_NWS
0 0 0 1 EBI_NWS_1
0 0 1 2 EBI_NWS_2
0 1 0 3 EBI_NWS_3
0 1 1 4 EBI_NWS_4
1 0 0 5 EBI_NWS_5
1 0 1 6 EBI_NWS_6
1 1 0 7 EBI_NWS_7
1 1 1 8 EBI_NWS_8