JAJSQ98 july 2020 TSB82AF15-EP
PRODUCTION DATA
The serial-bus slave address register is used to indicate the address of the device being targeted by the serial-bus cycle. This register also indicates if the cycle will be a read or a write cycle. Writing to this register initiates the cycle on the serial interface. This register is an alias for the serial-bus slave address register in the PCI header.
Device control memory window register offset: | 46h | |
Register type: | Read/Write | |
Default value: | 00h |
BIT NUMBER | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
RESET STATE | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
BIT | FIELD NAME | ACCESS | DESCRIPTION | |
---|---|---|---|---|
7:1(1) | SLAVE_ADDR | RW | Serial-bus slave address. This 7-bit field is the slave address for a serial-bus read or write transaction. The default value for this field is 000 0000b. | |
0(1) | RW_CMD | RW | Read/write command. This bit determines if the serial-bus cycle is a read or a write cycle. | |
0 = A single-byte write is requested (default) . 1 = A single-byte read is requested. |