Figure 4. Daisy Chain Addressing Procedure - STMicroelectronics AEK-POW-BMS63EN User Manual

Note: the software reset leaves the communication timeout (CommTimeout) unmodified, and clears the chip_ID.
If only SW_RST is sent, the device waits for CommTimeout and then moves to the sleep state.
If the initialization timer (t_SHUT) expires before the command is received, the device goes back to the sleep
state.
Any failure is masked until the device receives an address.
1.3.2.2.1 Addressing procedure
The following figure shows the daisy-chain addressing procedure for a stack of N
1.3.2.2.2 AEK-POW-BMS63EN addressing procedure
This procedure is performed through the "StartUpWakeUp" function, which configures the AEK-COM-ISOSPI1
and assigns an ID to each AEK-POW-BMS63EN of the chain.
IDs are sequentially assigned to all the BMS included in the system: ID no. 1 is assigned to the first BMS in the
chain, ID no. 2 is assigned to the second, and so on.
UM3185 - Rev 1
Figure 4. Daisy chain addressing procedure
UM3185
Voltage operating range
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DEVICES
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