SNIS217C december 2020 – may 2023 TMP139
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
As shown in Figure 7-23 and Figure 7-24, when the device has to send an IBI, wins arbitration on the bus and the IBI is ACK by the host, it shall always send the mandatory data byte (MDB) as 8'h00, followed by the MR51 and MR52 register values. After transmitting the last byte, it shall set the T-bit as 0, after which the host controller must send a Stop condition on the bus.
If PEC is enabled, then after MR52 register value, the PEC byte is sent with the T-bit set as 0. Again, the host must send a Stop condition on the bus.
When an IBI is asserted by the device and it successfully transmits the IBI, including the MDB, MR51, MR52 and PEC (if PEC mode is enabled) bytes, the device shall automatically clear the IBI_STATUS bit in MR48 register.