13. I2C Registers > Register Descriptions
439
Tsi578 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
25:31
SLV_ADDR
Slave Address
This is the device address for the Tsi578 as an I
2
C slave. An
external master uses this address to access the Tsi578
peripheral register space. For the slave interface to respond
to this address, the SLV_EN bit must be set.
The LSB two bits [30:31] of this field are latched at power-up
from the state of input pins. This allows board configuration
of up to four unique Tsi578 devices on the I2C bus. These
two bits are then locked for writing until the SLV_UNLK bit is
set to 1 during a write. This feature allows the boot load
process to write a slave address value to this register
without changing the power-up latch field.
A SLV_ADDR of 0x00 is never valid, as that value is used
for the I2C START_BYTE and General Call functions. The
General Call functions are not supported by the Tsi578 and
are ignored and NACK’d.
R/W
0x30
(Continued)
Bits
Name
Description
Type
Reset
Value
