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TVME8300 User Manual Issue 1.4
Page 29 of 70
4.3 I2C
Bus
The TVME8300 provides an on board I2C EEPROM for board specific data.
4.3.1 I2C EEPROM
EEPROM
Offset
Description
Content
0x00
Check sum
See note below
0x01
Number Of Valid Bytes Following
e.g. 0x06
0x02
Board Type (High Byte)
0x03
Board Type (Low Byte)
0x206C for
TVME8300
0x04
Board Option (High Byte)
0x05
Board Option (Low Byte)
e.g. 0x000A for
TVME8300-10
0x06
Board Version (Major)
0x07
Board Version (Minor)
V <major>.<minor>
e.g. 0x0100 = V1.0
0x08
...
0x0F
Factory Reserved
0x10
...
0xFF
Reserved
Figure 4-3 : I2C EEPROM Content
The address of the on board I2C EEPROM is 0b000.
Writes to the on board I2C EEPROM must be enabled in the Utility Control Register.
The check sum is the 2’s-complement of the lower byte of the sum of all used locations of the
I2C EEPROM, except the check sum byte.