Bus Signal Timing
CLKOUT
I41
I42
IRQx
I43
I43
Figure 9-23. Interrupt Detection Timing for External Edge Sensitive Lines
Table 9-8 shows the PCMCIA timing for the MPC860.
Table 9-8. PCMCIA Timing
33 MHz
40 MHz
50 MHz
66 MHz
Num
Characteristic
Unit
Min
20.73
Max
Min
Max
Min
Max
Min
Max
P44 A(0:31), REG valid to PCMCIA
—
16.75
—
13.00
—
9.36
—
ns
1
Strobe asserted
1
P45 A(0:31), REG valid to ALE negation 28.30
—
23.00
—
18.00
—
13.15
—
ns
ns
ns
ns
ns
ns
P46 CLKOUT to REG valid
7.58 15.58 6.25 14.25 5.00 13.00 3.79 11.84
8.58 7.25 6.00 4.84
P47 CLKOUT to REG invalid
—
—
—
—
P48 CLKOUT to CE1, CE2 asserted
P49 CLKOUT to CE1, CE2 negated
7.58 15.58 6.25 14.25 5.00 13.00 3.79 11.84
7.58 15.58 6.25 14.25 5.00 13.00 3.79 11.84
P50 CLKOUT to PCOE, IORD, PCWE,
IOWR assert time
—
11.00
11.00
—
11.00
—
11.00
P51 CLKOUT to PCOE, IORD, PCWE,
IOWR negate time
2.00 11.00 2.00 11.00 2.00 11.00 2.00 11.00
7.58 15.58 6.25 14.25 5.00 13.00 3.79 10.04
ns
P52 CLKOUT to ALE assert time
P53 CLKOUT to ALE negate time
P54 PCWE, IOWR negated to D(0:31)
ns
ns
ns
—
15.58
—
14.25
—
—
13.00
—
—
11.84
—
5.58
4.25
8.00
2.00
3.00
1.79
1
invalid
P55 WAITA and WAITB valid to CLKOUT 8.00
—
—
—
—
8.00
2.00
—
—
8.00
2.00
—
—
ns
ns
1
rising edge
P56 CLKOUT rising edge to WAITA and
2.00
1
WAITB invalid
34
MPC860 Family Hardware Specifications
MOTOROLA
MOTOROLA [ MOTOROLA ]
