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ARM DUI 0224F Copyright © 2003-2007 ARM Limited. All rights reserved. E-11
Table E-4 Example contents of a dynamic memory expansion EEPROM
Address Contents Example contents
0x00
DYCS1 memory type
0x81
- Single Data Rate SDRAM
0x01
DYCS1 memory width
0x12
- 32 bit chip select width, 16-bit device memory width
0x02
DYCS1 access time in 0.1ps (LSB)
0x4B
- LSB (of 75 which 75 * 0.1ns = 7.5ns access time)
0x03
DYCS1 access time in 0.1ps (MSB)
0x00
- MSB
0x04
DYCS1 memory size in bytes (LSB)
0x00
0x05
DYCS1 memory size in bytes
0x00
0x06
DYCS1 memory size in bytes
0x00
0x07
DYCS1 memory size in bytes (MSB)
0x08
(
0x08000000
Bytes = 64MBytes)
0x08
-
0x0F
Reserved
0xFF
0x10
-
0x2F
DYCS1 memory device string
“Infineon HYB39S512160AT-7.5”
0x30
DYCS2 memory type
0x81
- Single Data Rate SDRAM
0x31
DYCS2 memory width
0x02
- 32 bit wide
0x32
DYCS2 access time in 0.1ps (LSB)
0x4b
- LSB (of 75 which 75 * 0.1ns = 7.5ns access time)
0x33
DYCS2 access time in 0.1ps (MSB)
0x00
- MSB
0x34
DYCS2 memory size in bytes (LSB)
0x00
0x35
DYCS2 memory size in bytes
0x00
0x36
DYCS2 memory size in bytes
0x00
0x37
DYCS2 memory size in bytes (MSB)
0x08
(
0x08000000
Bytes = 64MBytes)
0x38
-
0x3F
Reserved
0xFF
0x40
-
0x5F
DYCS2 memory device string
“Infineon HYB39S512160AT-7.5”
0x60
DYCS3 memory type
0xFF
- not fitted
0x61
DYCS3 memory width
0xFF
0x62
DYCS3 access time in 0.1ps (LSB)
0xFF
0x63
DYCS3 access time in 0.1ps (MSB)
0xFF
0x64
DYCS3 memory size in bytes (LSB)
0xFF