Техническая Спецификация для Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK

 147

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

CCFG_EBICSA

Read-write

0x0007_0000

0 = EBI Chip Select 1 is assigned to the Static Memory Controller.

1 = EBI Chip Select 1 is assigned to the SDRAM Controller.

0 = EBI Chip Select 3 is only assigned to the Static Memory Controller and EBI_NCS3 behaves as defined by the SMC.

1 = EBI Chip Select 3 is assigned to the Static Memory Controller and the SmartMedia Logic is activated.

0 = EBI Chip Select 4 is only assigned to the Static Memory Controller and EBI_NCS4 behaves as defined by the SMC.

1 = EBI Chip Select 4 is assigned to the Static Memory Controller and the Compact Flash Logic Slot 0 is activated.

0 = EBI Chip Select 5 is only assigned to the Static Memory Controller and EBI_NCS5 behaves as defined by the SMC.

1 = EBI Chip Select 5 is assigned to the Static Memory Controller and the Compact Flash Logic Slot 1 is activated.

0 = EBI D0 - D15 Data Bus bits are internally pulled-up to the VDDIOM1 power supply.

1 = EBI D0 - D15 Data Bus bits are not internally pulled-up.

This allows to avoid overshoots and give the best performances according to the bus load and external memories.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

DDR_DRIVE

EBI_DRIVE

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

–

00

optimized for 1.8V powered memories with Low Drive

Maximum load capacitance < 30 pF

01

optimized for 3.3V powered memories with Low Drive

Maximum load capacitance < 30 pF

10

optimized for 1.8V powered memories with High Drive

Maximum load capacitance < 55 pF

11

optimized for 3.3V powered memories with High Drive

Maximum load capacitance < 55 pF