CY7C68300C CYPRESS [Cypress Semiconductor], CY7C68300C Datasheet - Page 34

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

Document 001-05809 Rev. *A
Legal values for wValue are as follows:
Internal Config byte writes must be constrained to addresses 0x2 through 0xF, as shown in
this address space result in undefined operation. Internal Config byte writes only overwrite AT2LP Configuration Byte registers,
the original data source (I
Table 12.EEPROM-related Vendor-specific Commands
READ_CONFIG_DATA
This USB request allows data retrieval from the data source specified by the wValue field. Data is retrieved beginning at the
address specified by the wIndex field (see
data source.
Legal values for wValue are as follows:
Illegal values for wValue result in an undefined operation. Attempted reads from an I
result in an undefined operation. Attempts to read configuration bytes with starting addresses greater than 0xF also, result in an
undefined operation.
LOAD_CONFIG_DATA
READ_CONFIG_DATA
• 0x0000 Internal Config bytes, address range 0x2 – 0xF
• 0x0002 External I
• 0x0000
• 0x0002
Label
Configuration bytes, addresses 0x0 – 0xF only
External I
2
C memory device
2
C memory device
2
bmRequestType bRequest
C memory device) remains unchanged.
0xC0
0x40
Table
0x01
0x02
12). The wLength field denotes the length in bytes of data requested from the
Data Source
wValue
0x0000
Starting Address Data Length
30x02 – 0x0F
wIndex
CY7C68300C/CY7C68301C
CY7C68320C/CY7C68321C
2
C memory device when none is connected
Table
Data Length
wLength
12. Attempts to write outside
Configuration
Configuration
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Data
Data
Data
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