Figure 1.17 Interlocked Frames - Fujitsu MAU3147RC SERIES Technical Manual

Of the primitives that may be inserted in SSP frames sent from the SSP INIT port
and expander port, a drive can detect the following:
a) ACK
b) NAK
c) RRDY
d) CREDIT_BLOCKED
e) NOTIFY
f) BREAK
g) ERROR
Meanwhile, the primitives that may be inserted in SSP frames sent from the drive
are as follows:
a) ACK
b) NAK
c) RRDY
d) CREDIT_BLOCKED
Figure 1.17 shows an example of the transfer of interlocked frames.
Figure 1.18 shows an example of the transfer of non-interlocked frames with the
same tag.
Figure 1.19 shows an example of the transfer of non-interlocked frames with
different tags.
Interlocked frame
Interlocked frame
C141-C009
transmitter
time

Figure 1.17 Interlocked frames

1.5 Address frames
receiver
ACK or NAK
ACK or NAK
time
1-55