beautypg.com

Dual sram devices, Dual sram devices –10 – Altera Nios Development Board User Manual

Page 18

background image

1–10

Altera

Corporation

Nios Development Board Reference Manual, Stratix Edition

September 2004

Dual SRAM Devices

f

See www.micron.com for detailed SDRAM information.

Dual SRAM
Devices

U35 and U36 are two 512 Kbyte x 16-bit asynchronous SRAM devices.
They are connected to the Stratix device so they can be used by a Nios II
embedded processor as general-purpose memory. The two 16-bit devices
can be used in parallel to implement a 32-bit wide memory subsystem.

DQ16

31

AG8

DQ17

33

AF8

DQ18

34

AD8

DQ19

36

AH9

DQ20

37

AH8

DQ21

39

AE9

DQ22

40

AF9

DQ23

42

AG9

DQ24

45

AD10

DQ25

47

AF10

DQ26

48

AH10

DQ27

50

AE10

DQ28

51

AF11

DQ29

53

AE11

DQ30

54

AH11

DQ31

56

AG11

DQM0

16

AE14

DQM1

71

Y13

DQM2

28

AE7

DQM3

59

AG10

RAS_N

19

AH3

CAS_N

18

AD18

CKE

67

AE18

CS_N

20

AG18

WE_N

17

AH19

CLK

68

L13

Table 1–3. SDRAM (U57) Pin Table (Part 2 of 2)

Pin Name

Pin Number

Connects to Stratix Pin