công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

AM79C974 bảng dữ liệu(PDF) 42 Page - Advanced Micro Devices

tên linh kiện AM79C974
Giải thích chi tiết về linh kiện  PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems
PDF  153 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  AMD [Advanced Micro Devices]
Trang chủ  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C974 bảng dữ liệu(HTML) 42 Page - Advanced Micro Devices

Back Button AM79C974 Datasheet HTML 38Page - Advanced Micro Devices AM79C974 Datasheet HTML 39Page - Advanced Micro Devices AM79C974 Datasheet HTML 40Page - Advanced Micro Devices AM79C974 Datasheet HTML 41Page - Advanced Micro Devices AM79C974 Datasheet HTML 42Page - Advanced Micro Devices AM79C974 Datasheet HTML 43Page - Advanced Micro Devices AM79C974 Datasheet HTML 44Page - Advanced Micro Devices AM79C974 Datasheet HTML 45Page - Advanced Micro Devices AM79C974 Datasheet HTML 46Page - Advanced Micro Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 42 / 153 page
background image
AMD
P R E L I M I N A R Y
42
Am79C974
Master Abort
The Am79C974 controller will terminate its cycle with a
Master Abort sequence if
DEVSEL is not asserted within
4 clocks after
FRAME is asserted. Master Abort is
treated as a fatal error by the Am79C974 controller. For
the Ethernet, the Am79C974 controller will reset all CSR
and BCR locations to their H_RESET values. Any
on-going network activity will be stopped immediately.
The PCI configuration registers will not be cleared. For
SCSI, when the master aborts,
INTA will not be as-
serted, but the ABORT bit (bit 2 of the DMA status regis-
ter at offset 54h), is set. For either Ethernet or SCSI
master abort causes RMABORT (bit 13) of the status
register in the appropriate PCI configuration space to
be set.
18681A-20
FRAME
CLK
AD
IRDY
TRDY
C/
BE
DEVSEL
REQ
GNT
12345678
ADDR
DATA
0000
0111
10
9
PAR
PAR
PAR
DEVSEL is sampled by the Am79C974 controller.
Figure 16. Master Abort



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com