參數(shù)資料
型號(hào)： RIVA128ZX
廠商： 意法半導(dǎo)體
英文描述： 128-BIT 3D MULTIMEDIA ACCELERATOR
中文描述： 128位3D多媒體加速器
文件頁(yè)數(shù)： 15/85頁(yè)
文件大?。?/td> 609K
代理商： RIVA128ZX
128-BIT 3D MULTIMEDIA ACCELERATOR
RIVA128ZX
15/85
the AGP bridge chip and RIVA128ZX are the only
devices on the AGP bus - all other I/O devices re-
main on the PCI bus.
The add-in slot defined for AGP uses a new con-
nector body (for electrical signaling reasons)
which is not compatible with the PCI connector;
PCI and AGP boards are not mechanically inter-
changeable.
AGP accesses differ from PCI in that they are
pipelined. This compares with serialized PCI
transactions, where the address, wait and data
phases need to complete before the next transac-
tion starts. AGP transactions can only access sys-
tem memory - not other PCI devices or CPU. Bus
mastering accesses can be either PCI or AGP-
style.
Full details of AGP are given in the Accelerated
Graphics Port InterfaceSpecification[3] published
by Intel Corporation.
4.1
RIVA128ZX AGP INTERFACE
The RIVA128ZX glueless interface to AGP 1.0 is shown in Figure 2.
Figure 2.
AGP interface pin connections
4.2
AGP bus commands supported
The following AGP bus commands are supported
by the RIVA128ZX:
-
Read
-
Read (hi-priority)
AGP BUS TRANSACTIONS
PCI transactions on the AGP bus
PCI transactions can be interleaved with AGP
transactions including between pipelined AGP
data transfers.A basicPCI transaction on the AGP
interface is shown in Figure 3. If the PCI target is
a non AGP compliant master, it will not see
AGPST[2:0]
and the transaction appears to be on
a PCI bus.
For AGP aware bus masters,
AGPST[2:0]
indicate that permission touse the in-
terface has been granted to initiate a request and
not to move AGP data.
A
PCICBE[3:0]#
PCIAD[31:0]
AGPPIPE#
PCIDEVSEL#
32
4
PCIIRDY#
PCITRDY#
PCISTOP#
PCIIDSEL
PCIREQ#
PCIGNT#
PCICLK
PCIRST#
PCIPAR
PCIINTA#
RIVA128ZX
AGPST[2:0]#
3
AGPRBF#
相關(guān)PDF資料
PDF描述
RIVA128 RIVA 128⑩ 128-BIT 3D MULTIMEDIA ACCELERATOR
RIX-0142-H FILTER IEC EINGANG ULTRA KOMPAKT 1A
RIX-0342-H FILTER IEC EINGANG ULTRA KOMPAKT 3A
RIX-0642-H FILTER IEC EINGANG ULTRA KOMPAKT 6A
RJ45SRB-BLACK TUELLE FUER RJ45 STECKER SW Inhalt pro Packung: 8 Stk.
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