©2018
Rev 2.0
35
Hardware Registers
Bytes written 4
Bytes read 8
Bits Type Name
Width
Description
[15:0]
W
Address
16
Starting EEPROM address
[23:16]
W
Unused
8
Zeros
[63:0]
R
Data
64
8 bytes of data, LSB is the byte at the start address
Register 0x25 USER_EEPROM_READ
Write to this register to query 8 bytes of data from the user EEPROM at the starting address.
Bytes written 4
Bytes read 8
Bits Type Name
Width
Description
[15:0]
W
Address
16
Starting EEPROM address
[23:16]
W
Unused
8
Zeros
[63:0]
R
Data
64
8 bytes of data, LSB is the byte at the start address
Register 0x26 SERIAL_OUT_BUFFER
Writing to this register only provides the 64 clock edges (Reg + 7 data bytes) to transfer serial data
from the device through SPI. Other interfaces do not use this register.
Bytes read 8
Bits Type Name
Width
Description
[55:0]
W
Unused
56
Zeros, just to provide clocking for SPI data from device
[63:0]
R
Data
64
8 bytes of data