mpc850de Freescale Semiconductor, Inc, mpc850de Datasheet - Page 53

• Manufacturer Part Number: mpc850de
• Description: Mpc850 Rev. A/b/c Communications Controller
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
1
2
Num
133
134
138
139
The ratios SyncCLK/RCLKx and SyncCLK/TCLKx must be greater or equal to 2/1.
SDACK is asserted whenever the SDMA writes the incoming frame destination address into memory.
TENA active delay (from TCLKx rising edge)
TENA inactive delay (from TCLKx rising edge)
CLKOUT low to SDACK asserted
CLKOUT low to SDACK negated
MPC850 (Rev. A/B/C) Hardware Specifications
Figure 53. Ethernet Collision Timing Diagram
Figure 54. Ethernet Receive Timing Diagram
Table 20. Ethernet Timing (continued)
Characteristic
2
2
Ethernet Electrical Specifications
All Frequencies
10.00
10.00
Min
—
—
50.00
50.00
20.00
20.00
Max
Unit
ns
ns
ns
ns
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