mpc855t Freescale Semiconductor, Inc, mpc855t Datasheet - Page 57

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

11.8
Table 22
Freescale Semiconductor
Num
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
CLSN width high
RCLK1 rise/fall time
RCLK1 width low
RCLK1 clock period
RXD1 setup time
RXD1 hold time
RENA active delay (from RCLK1 rising edge of the last data bit)
RENA width low
TCLK1 rise/fall time
TCLK1 width low
TCLK1 clock period
TXD1 active delay (from TCLK1 rising edge)
TXD1 inactive delay (from TCLK1 rising edge)
TENA active delay (from TCLK1 rising edge)
TENA inactive delay (from TCLK1 rising edge)
(Echo Input)
provides the Ethernet timings as shown in
Ethernet Electrical Specifications
(Output)
(Output)
TCLK1
RTS1
CTS1
TxD1
102
MPC860 PowerQUICC™ Family Hardware Specifications, Rev. 8
1
1
Figure 58. HDLC Bus Timing Diagram
Characteristic
102
103
104
Table 22. Ethernet Timing
105
101
Figure 59
100
107
through
Figure
63.
Min
100
40
40
80
20
10
40
99
10
10
10
10
All Frequencies
—
—
5
CPM Electrical Characteristics
104
Max
120
101
15
15
50
50
50
50
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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