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AM79C978VC/W データシート(PDF) 227 Page - Advanced Micro Devices

部品番号 AM79C978VC/W
部品情報  Single-Chip 1/10 Mbps PCI Home Networking Controller
PDF  261 Pages
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メーカー  AMD [Advanced Micro Devices]
ホームページ  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C978VC/W データシート(HTML) 227 Page - Advanced Micro Devices

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Am79C978
227
SWITCHING CHARACTERISTICS: MEDIA INDEPENDENT INTERFACE
Notes:
1. MDIO valid measured at the exposed mechanical Media Independent Interface.
2. TXCLK and RXCLK frequency and timing parameters are defined for the external physical layer transceiver as defined in the
IEEE 802.3u standard. They are not replicated here.
Parameter
Symbol
Parameter Name
Test Condition
Min
Max
Unit
Transmit Timing
tTVAL
TX_EN and TXD valid from
↑ TX_CLK
measured from Vilmax = 0.8 V or
measured from Vihmin = 2.0V
(Note 1)
0
25
ns
Receive Timing
tRSU
RX_DV, RX_ER, RXD setup to
↑ RX_CLK
measured from Vilmax = 0.8 V or
measured from Vihmin = 2.0V
(Note 1)
10
ns
tRH
RX_DV, RX_ER, RXD hold to
↑ RX_CLK
measured from Vilmax = 0.8 V or
measured from Vihmin = 2.0V
(Note 1)
10
ns
Management Cycle Timing
tMHIGH
MDC Pulse Width HIGH Time
CLOAD = 390 pf
160
ns
tMLOW
MDC Pulse Width LOW Time
CLOAD = 390 pf
160
ns
tMCYC
MDC Cycle Period
CLOAD = 390 pf
400
ns
tMSU
MDIO setup to
↑ MDC
CLOAD = 470 pf,
measured from Vilmax = 0.8 V or
measured from Vihmin = 2.0V
(Note 1)
10
ns
tMH
MDIO hold to
↑ MDC
CLOAD = 470 pf,
measured from Vilmax = 0.8 V or
measured from Vihmin = 2.0V
(Note 1)
10
ns
tMVAL
MDIO valid from
↑ MDC
CLOAD = 470 pf,
measured from Vilmax = 0.8 V or
measured from Vihmin = 2.0V,
(Note 1)
tMCYC -
tMSU
ns



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