ZHCSTD7A December 2021 – November 2023 BQ79631-Q1
PRODUCTION DATA
The device address byte identifies the device targeted by the single device read/write command. This byte is omitted for broadcast, stack, and broadcast reverse direction command frames. All response frames contain the device address byte. In single device read/write commands, the device that contains a matching value in the DIR0_ADDR (used for communication direction with CONTROL1[DIR_SEL] = 0) or in DIR1_ADDR (used for communication direction with CONTROL1[DIR_SEL] = 1) responds to the command. If multiple devices have matching values, all of those devices will respond and cause collision.
Command Frame | Response Frame | ||||
---|---|---|---|---|---|
Bit | Bit Name | Description | Bit Name | Description | |
DEV ADR | 7 | RSVD | Should always write 0 | RSVD | Should always write 0 |
6 | RSVD | Should always write 0 | RSVD | Should always write 0 | |
5 to 0 | Device Address | Set the device address range from 0x00 to 0x3F | Device Address | Set the device address range from 0x00 to 0x3F |