AT91SAM9R64_1 Datasheet, PDF (297/903 Pages) ATMEL Corporation – AT91 ARM Thumb Microcontrollers

AT91SAM9R64/RL64 Preliminary
28.5.6 EBI0 Chip Select Assignment Register
Register Name:
EBI_CSA
Access Type:
Read/Write
Reset:
0x0001_0000
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
VDDIOMSEL
15
14
13
12
11
10
–
–
–
–
–
–
9
8
–
EBI_DBPUC
7
6
5
4
3
2
1
0
–
–
EBI_CS5A
EBI_CS4A
EBI_CS3A
–
EBI_CS1A
–
• EBI0_CS1A: EBI0 Chip Select 1 Assignment
0 = EBI0 Chip Select 1 is assigned to the Static Memory Controller.
1 = EBI0 Chip Select 1 is assigned to the SDRAM Controller.
• EBI0_CS3A: EBI0 Chip Select 3 Assignment
0 = EBI0 Chip Select 3 is only assigned to the Static Memory Controller and EBI0_NCS3 behaves as defined by the SMC.
1 = EBI0 Chip Select 3 is assigned to the Static Memory Controller and the NAND Flash Logic is activated.
• EBI0_CS4A: EBI0 Chip Select 4 Assignment
0 = EBI0 Chip Select 4 is only assigned to the Static Memory Controller and EBI0_NCS4 behaves as defined by the SMC.
1 = EBI0 Chip Select 4 is assigned to the Static Memory Controller and the CompactFlash Logic (first slot) is activated.
• EBI0_CS5A: EBI0 Chip Select 5 Assignment
0 = EBI0 Chip Select 5 is only assigned to the Static Memory Controller and EBI0_NCS5 behaves as defined by the SMC.
1 = EBI0 Chip Select 5 is assigned to the Static Memory Controller and the CompactFlash Logic (second slot) is activated.
• EBI0_DBPUC: EBI0 Data Bus Pull-Up Configuration
0 = EBI0 D0 - D15 Data Bus bits are internally pulled-up to the VDDIOM0 power supply.
1 = EBI0 D0 - D15 Data Bus bits are not internally pulled-up.
• VDDIOMSEL: Memory voltage selection
0 = Memories are 1.8V powered.
1 = Memories are 3.3V powered.
6289C–ATARM–28-May-09
297