mpc880 Freescale Semiconductor, Inc, mpc880 Datasheet - Page 61

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

12.8
Table 24
Freescale Semiconductor
Num
120
121
122
123
124
125
126
127
128
129
130
131
132
133
(Echo Input)
provides the Ethernet timings as shown in
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)
Ethernet Electrical Specifications
(Output)
(Output)
TCLK1
RTS1
CTS1
TxD1
MPC885/MPC880 PowerQUICC™ Hardware Specifications, Rev. 4
102
1
1
Figure 61. HDLC Bus Timing Diagram
102
Characteristic
103
104
Table 24. Ethernet Timing
105
101
Figure 62
100
107
through
Figure
64.
All Frequencies
Min
100
6.5
40
40
80
20
10
40
99
10
—
—
—
5
CPM Electrical Characteristics
104
Max
120
101
15
15
50
50
50
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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