am79c901a Advanced Micro Devices, am79c901a Datasheet - Page 69

• Manufacturer Part Number: am79c901a
• Description: Homephy Single-chip 1/10 Mbps Home Networking Phy
• Manufacturer: Advanced Micro Devices

AC CHARACTERISTICS
GPSI
10BASE-T Transmit Timing (GPSI)
Note: Not tested.
No.
1
2
3
4
5
6
TXDAT,
RXCRS
TXCLK
TXEN
TXEN
TX±
Symbol
t
t
t
t
PWL
t
t
PD
PD
PD
H
S
TXDAT, TXEN setup time to TXCLK
TXDAT, TXEN hold time from TXCLK
Transmit latency (TXEN sampled HIGH to 1st bit of data)
RXCRS assert from TXEN sampled HIGH
RXCRS de-assert from TXEN sampled LOW
TXEN de-assertion time between packets (Note 1)
End of Packet
Figure 2. 10 Mbps Transmit Timing (GPSI)
5
Parameter Description
P R E L I M I N A R Y
6
Am79C901A
edge
edge
1
2
4
3
Start of Packet
Min
240
300
10
0
0
0
Max
360
130
130
–
–
–
22304B-26
Unit
ns
ns
ns
ns
ns
ns
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