mpc880 Freescale Semiconductor, Inc, mpc880 Datasheet - Page 52

• Manufacturer Part Number: mpc880
• Description: Mpc885 Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

CPM Electrical Characteristics
12.5
Table 20
12.6
Table 21
52
Num
Num
71a
61
62
63
64
65
70
71
72
73
74
75
TIN/TGATE
(Output)
(Input)
provides the general-purpose timer timings as shown in
TOUT
provides the serial interface timings as shown in
CLKO
TIN/TGATE rise and fall time
TIN/TGATE low time
TIN/TGATE high time
TIN/TGATE cycle time
CLKO low to TOUT valid
L1RCLK, L1TCLK frequency (DSC = 0)
L1RCLK, L1TCLK width low (DSC = 0)
L1RCLK, L1TCLK width high (DSC = 0)
L1TXD, L1ST(1–4), L1RQ, L1CLKO rise/fall time
L1RSYNC, L1TSYNC valid to L1CLK edge (SYNC setup time)
L1RSYNC, L1TSYNC rise/fall time
Timer AC Electrical Specifications
Serial Interface AC Electrical Specifications
L1CLK edge to L1RSYNC, L1TSYNC, invalid (SYNC hold time)
MPC885/MPC880 PowerQUICC™ Hardware Specifications, Rev. 4
Figure 53. CPM General-Purpose Timers Timing Diagram
61
Characteristic
Characteristic
61
Table 20. Timer Timing
2
1, 2
3
Table 21. SI Timing
60
65
63
Figure 54
Figure
64
through
P + 10
P + 10
20.00
35.00
Min
53.
—
—
—
All Frequencies
62
Figure
All Frequencies
Min
SYNCCLK/2.5
10
1
2
3
3
Freescale Semiconductor
58.
15.00
15.00
Max
—
—
—
—
Max
25
—
—
—
—
MHz
Unit
Unit
ns
ns
ns
ns
ns
ns
clk
clk
clk
ns
ns