SCPS311 March 2026
ADVANCE INFORMATION
As shown in Section 7.5.2, the LSB of the second byte enables the multi-port feature. When this bit is 1, each bit of the following write data byte on SDI refers to individual ports. So, LSB bit B0 refers to P0 port, B1 refers to P1 port, B2 refers to P2 port. All I/Os in a particular port will have the same configuration when multi-port programming is used. During a multi-port access, the SDO will output the first byte with fault status register value, followed by 0s for the data byte.