參數(shù)資料
型號: AM79C974KCW
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems
中文描述: 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132
封裝: PLASTIC, QFP-132
文件頁數(shù): 38/153頁
文件大小: 838K
代理商: AM79C974KCW
AMD
P R E L I M I N A R Y
38
Am79C974
Disconnect Without Data Transfer
Figure 12 shows a target disconnect sequence during
which no data is transferred.
STOP
is asserted on clock
4 without
TRDY
being asserted at the same time. The
Am79C974 controller terminates the current transfer
with the deassertion of
FRAME
on clock 5 and one clock
cycle later with the deassertion of
IRDY
. It finally re-
leases the bus on clock 6. The Am79C974 controller will
re-request the bus after 2 clock cycles to retry the last
transfer. The starting address of the new transfer will be
the same address as of the last untransferred data.
18681A-16
FRAME
CLK
AD
IRDY
TRDY
C/
BE
DEVSEL
REQ
GNT
1
2
3
4
5
6
7
8
DATA
0000
0111
10
9
PAR
PAR
PAR
DEVSEL
is sampled by the Am79C974 controller.
STOP
0111
11
ADDR
i
ADDR
i
Figure 12. Disconnect Without Data Transfer
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相關代理商/技術參數(shù)
參數(shù)描述
AM79C975 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C975BKC\\W 制造商:Advanced Micro Devices 功能描述:
AM79C975BKC\W 制造商:Advanced Micro Devices 功能描述:
AM79C975BKD\\W 制造商:Advanced Micro Devices 功能描述:
AM79C975BKD\W 制造商:Advanced Micro Devices 功能描述:PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY 制造商:AMD (Advanced Micro Devices) 功能描述:PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY