參數(shù)資料
型號: AM79C970
廠商: Advanced Micro Devices, Inc.
英文描述: PCnetTM-PCI Single-Chip Ethernet Controller for PCI Local Bus
中文描述: PCnetTM - PCI單芯片以太網(wǎng)控制器的PCI總線
文件頁數(shù): 138/168頁
文件大?。?/td> 943K
代理商: AM79C970
P R E L I M I N A R Y
AMD
1-1005
Am79C970
SWITCHING CHARACTERISTICS: 10BASE-T Interface
Parameter
Symbol
Transmit Timing
t
TETD
t
TR
t
TF
t
TM
t
PERLP
t
PWLP
t
PWPLP
t
JA
t
JR
t
JREC
Parameter Description
Test Conditions
Min
Max
Unit
Transmit Start of Idle
Transmitter rise time
Transmitter fall time
Transmitter rise and fall time mismatch
Idle Signal Period
Idle Link Pulse Width
Predistortion Idle Link Pulse Width
Transmit jabber activation time
Transmit jabber reset time
Transmit jabber recovery time
(minimum time gap between
transmitted frames to prevent
jabber activation)
Receiving Timing
t
PWNRD
RXD pulse width not to turn off
internal carrier sense
t
PWROFF
RXD pulse width to turn off
t
RETD
Receive Start of Idle
250
350
5.5
5.5
1
24
120
55
150
750
ns
ns
ns
ns
ms
ns
ns
ms
ms
μ
s
(10% to 90%)
(90% to 10%)
(t
TM
= | t
TR
– t
TF
|)
8
(See note below)
(See note below)
75
45
20
250
1.0
V
IN
> V
THS
(min)
136
ns
V
IN
> V
THS
(min)
200
ns
ns
200
Note:
Not tested; parameter guaranteed by characterization.
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