Ethernet Timing - Digi NS7520B-1-C36 Hardware Reference Manual

T i m i n g D i a g r a m s

Ethernet timing

Operating conditions:
Temperature:
Voltage:
Output load:
Input drive:
Ethernet timing parameters
Num
44
45
46
49
47
48
50
52
53
2 9 0
-15.00 (min) 110.00 (max)
1.60 (min) 1.40 (max)
25.0pf
CMOS buffer
Description
TXCLK high to TXD*, TXEN, TXER valid
RXD*, RXER, RXDV, TXCOL, RXCRS valid to RXCLK high
(setup)
RXCLK high to RXD*, RXER, RXDV, TXCOL, RXCRS hold time 2
MDC high to MDIO valid
MDIO valid to MDC high (setup)
MDC high to MDIO hold time
RXCLK high to RSPF* valid
REJECT* valid to RXCLK high (setup)
REJECT* valid from RXCLK high (hold)
N S 7 5 2 0 H a r d w a r e R e f e r e n c e , R e v G 9 / 2 0 0 7
Min Max Unit
11.5 ns
3 ns
ns
50 ns
3 ns
3 ns
15.5 ns
3 ns
1.5 ns