CY7C68300C CYPRESS [Cypress Semiconductor], CY7C68300C Datasheet - Page 33

• Manufacturer Part Number: CY7C68300C
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document 001-05809 Rev. *A
Table 11.Configuration Data Organization (continued)
Note: More than 0X100 bytes of configuration are shown for example only. The AT2LP only supports addresses up to 0xFF.
Programming the EEPROM
There are three methods of programming the EEPROM:
Any vendor-specific USB write request to the Serial ROM device configuration space simultaneously update internal configuration
register values as well. If the I
nously reset (toggle RESET#) before configuration data is reloaded.
The AT2LP supports a subset of the ’slow mode’ specification (100 KHz) required for 24LCXXB EEPROM family device support.
Features such as ’Multi-Master,’ ’Clock Synchronization’ (the SCL pin is output only), ’10-bit addressing,’ and ’CBUS device
support’ are not supported. Vendor-specific USB commands allow the AT2LP to address up to 256 bytes of EEPROM data.
LOAD_CONFIG_DATA
This request enables writes to the AT2LP’s configuration data space. The wIndex field specifies the starting address and the
wLength field denotes the data length in bytes.
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
0Xxx
Address
• Stand-alone EEPROM programmer
• Vendor-specific USB commands, listed in
• In-system programming (for example, bed-of-nails tester)
Byte
Device name byte 4
Device name byte 5
Device name byte 6
Device name byte 7
Device name byte 8
Device name byte 9
Device name byte 10
Device name byte 11
Device name byte 12
Device name byte 13
Device name byte 14
Device name byte 15
Device name byte 16
Device name byte 17
Device name byte 18
Device name byte 19
Device name byte 20
Device name byte 21
Device name byte 22
Device name byte 23
Device name byte 24
Unused ROM Space
Configuration
Item Name
2
C device is programmed without vendor specific USB commands, the AT2LP must be synchro-
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
ASCII Character
Amount of unused ROM space varies depending on strings.
Table 12
Item Description
Configuration
CY7C68300C/CY7C68301C
CY7C68320C/CY7C68321C
Required
Contents
Page 33 of 42
Contents
Variable
’C’ 0x43
’m’ 0x6d
’N’ 0x4e
’m’ 0x6d
’U’ 0x55
’N’ 0x4e
’e’ 0x65
’s’ 0x73
’s’ 0x73
’u’ 0x75
’s’ 0x73
’a’ 0x61
’e’ 0x65
’L’ 0x4c
’0’ 0x30
’r’ 0x72
’ ’ 0x20
’t’ 0x74
’o’ 0x6f
’ ’ 0x20
’ ’ 0x20
0xFF
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