SMC Transparent AC Electrical Specifications
11.8 SMC Transparent AC Electrical Specifications
Table 11-21 provides the SMC transparent timings as shown in Figure 11-62.
Table 11-21. SMC Transparent Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
1
150 SMCLK clock period
151 SMCLK width low
151A SMCLK width high
152 SMCLK rise/fall time
100
50
50
—
10
20
5
—
—
—
15
50
—
—
ns
ns
ns
ns
ns
ns
ns
153 SMTXD active delay (from SMCLK falling edge)
154 SMRXD/SMSYNC setup time
155 RXD1/SMSYNC hold time
1
SYNCCLK must be at least twice as fast as SMCLK.
SMCLK
152
152
151
151
150
SMTXD
(Output)
NOTE
154
153
155
SMSYNC
154
155
SMRXD
(Input)
NOTE:
1. This delay is equal to an integer number of character-length clocks.
Figure 11-62. SMC Transparent Timing Diagram
11.9 SPI Master AC Electrical Specifications
Table 11-22 provides the SPI master timings as shown in Figure 11-63 and Figure 11-64.
60
MPC860 Family Hardware Specifications
MOTOROLA
MOTOROLA [ MOTOROLA ]
