Following an
ACK if
the
WR/ bit is set (a read request), the client hardware
will clear
CKP. This allows the client time to update SSPxBUF with data to transfer to the
host. If the Stretch Enable (
SEN)
bit is set, the client hardware will always stretch the clock after the
ACK sequence. Once the client is ready; CKP is set
by software and communication resumes.