MPC875 Freescale Semiconductor, Inc, MPC875 Datasheet - Page 60

• Manufacturer Part Number: MPC875
• Description: Mpc875 Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

CPM Electrical Characteristics
1
2
60
Num
138
139
The ratios SYNCCLK/RCLK3 and SYNCCLK/TCLK3 must be greater than or equal to 2/1.
SDACK is asserted whenever the SDMA writes the incoming frame DA into memory.
CLKO1 low to SDACK asserted
CLKO1 low to SDACK negated
RENA(CD3)
CLSN(CTS1)
RCLK3
(Input)
(Input)
RxD3
(Input)
MPC875/MPC870 PowerQUICC™ Hardware Specifications, Rev. 4
Figure 56. Ethernet Collision Timing Diagram
Figure 57. Ethernet Receive Timing Diagram
2
Table 24. Ethernet Timing (continued)
2
Characteristic
121
124
120
125
121
126
123
Last Bit
All Frequencies
Min
—
—
127
Freescale Semiconductor
Max
20
20
Unit
ns
ns