Motorola MPC860 PowerQUICC User Manual page 878

Part V. The Communications Processor Module
Data
STB
Figure 33-14. PIP Transmitter Timing Diagram
A PIP receiver in pulsed handshake mode has four options for determining the relative
timing of BUSY to ACK. Figure 33-15 through Figure 33-18 show how the deÞnitions of
TPAR1 and TPAR2 vary for each receiver mode. The receiver mode is selected in
PIPC[TMOD]; see Table 33-6.
BUSY
(PB31)
ACK
BUSY
(PB31)
ACK
BUSY
(PB31)
ACK
33-18
TPAR1
TPAR1
Figure 33-15. PIP Receiver TimingÑMode 0
Figure 33-16. PIP Receiver TimingÑMode 1
TPAR1
Figure 33-17. PIP Receiver TimingÑMode 2
MPC860 PowerQUICC UserÕs Manual
TPAR2
TPAR2
TPAR1 TPAR2
TPAR2
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