Communication Processor Module
MOTOROLA MPC823e REFERENCE MANUAL 16-135
SERIAL
I/F
COMMUNICATION
16
PROCESSOR MODULE
Figure 16-57. Example of CEx = 0 and FEx Interaction, XFSD = 0
CEx=0
L1xCLK
L1xSYNC
(FEx=1)
L1TXDx (BIT 0)
L1STx (ON BIT 0)
tFSDx=0
L1xSYNC
(FEx=1)
L1TXDx (BIT 0)
L1STx (ON BIT 0)
RX SAMPLED HERE
L1xSYNC
(FEx=0)
L1TXDx (BIT 0)
L1STx (ON BIT 0)
L1xSYNC (FEx=0)
L1TXDx (BIT 0)
L1STx (ON BIT 0)
L1STx DRIVEN FROM CLOCK LOW
BOTH THE DATA AND L1STx FROM SYNC
BOTH THE DATA AND L1STx FROM THE CLOCK
L1STx DRIVEN FROM SYNC
DATA DRIVEN FROM CLOCK HIGH
WHEN ASSERTED DURING CLOCK HIGH
WHEN ASSERTED DURING CLOCK LOW
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