MPC857DSL Motorola, MPC857DSL Datasheet - Page 60

• Manufacturer Part Number: MPC857DSL
• Description: (MPC857 / MPC862) Hardware Specifications
• Manufacturer: Motorola

CPM Electrical Characteristics
CPM Electrical Characteristics
11.8
Table 22 provides the Ethernet timings as shown in Figure 60 though Figure 64.
60
Num
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
(Echo Input)
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)
(Output)
(Output)
TCLK1
RTS1
CTS1
TxD1
Ethernet Electrical Specifications
102
1
1
MPC862/857T/857DSL Hardware Specifications
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 59. HDLC Bus Timing Diagram
102
103
104
Characteristic
Table 22. Ethernet Timing
Go to: www.freescale.com
105
101
100
107
All Frequencies
Min
100
40
40
80
20
10
40
99
10
10
10
10
—
—
5
104
Max
120
101
—
15
—
—
—
—
15
—
50
50
50
50
—
MOTOROLA
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns