mpc855t Freescale Semiconductor, Inc, mpc855t Datasheet - Page 49

• Manufacturer Part Number: mpc855t
• Description: Mpc855t Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

11.6
Table 19
Freescale Semiconductor
Num
71a
78A
80A
83a
70
71
72
73
74
75
76
77
78
79
80
81
82
83
TIN/TGATE
(Output)
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)
L1CLK edge to L1RSYNC, L1TSYNC, invalid (SYNC hold time)
L1RSYNC, L1TSYNC rise/fall time
L1RXD valid to L1CLK edge (L1RXD setup time)
L1CLK edge to L1RXD invalid (L1RXD hold time)
L1CLK edge to L1ST(1–4) valid
L1SYNC valid to L1ST(1–4) valid
L1CLK edge to L1ST(1–4) invalid
L1CLK edge to L1TXD valid
L1TSYNC valid to L1TXD valid
L1CLK edge to L1TXD high impedance
L1RCLK, L1TCLK frequency (DSC =1 )
L1RCLK, L1TCLK width low (DSC = 1)
L1RCLK, L1TCLK width high (DSC = 1)
(Input)
CLKO
TOUT
provides the serial interface timings as shown in
Serial Interface AC Electrical Specifications
MPC860 PowerQUICC™ Family Hardware Specifications, Rev. 8
Figure 50. CPM General-Purpose Timers Timing Diagram
61
Characteristic
4
4
61
2
1, 2
3
3
Table 19. SI Timing
60
65
63
Figure 51
64
through
P + 10
P + 10
P + 10
P + 10
20.00
35.00
17.00
13.00
10.00
10.00
10.00
10.00
10.00
62
0.00
Min
—
—
—
—
Figure
All Frequencies
CPM Electrical Characteristics
55.
SYNCCLK/2.5
SYNCCLK/2
16.00 or
15.00
15.00
45.00
45.00
45.00
55.00
55.00
42.00
Max
—
—
—
—
—
—
—
—
MHz
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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