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
文件頁數(shù)： 32/85頁
文件大?。?/td> 609K
代理商： RIVA128ZX
128-BIT 3D MULTIMEDIA ACCELERATOR
RIVA128ZX
32/85
6.2
Signal changes between RIVA 128 and RIVA128ZX
The extra addresssignal (
FBA[10]
)required to address16Mbit SGRAM devices was defined on RIVA128
and was connected to pin 30 of the SGRAM in the RIVA 128 Reference Design schematics. This pin is a
N/C on8Mbit memory devices and itwas also N/C on RIVA128. For8MByte designs using 8Mbit devices;
FBCS0#
drives the chip selects for the first external bank of memory and
FBCS1#
drives the second ex-
ternal bank.
The ROMBIOS implementscode which automatically detects the configuration and memorytype.If a mix-
ture of 4-internal bank and 2-internal bank 16Mbit devices are used (e.g. 2 soldered down and 2 added by
an end user as an SO-DIMM) then RIVA128ZX will program those devices and operate itself as 2-internal
bank. There isno supportfor mixed 16Mbit and 8Mbit memories (i.e. there is no 6MBytemode) nor is there
support for 16MByte using eight 16Mbit devices. The upgrade path from two devices to four devices has
also been changed to better accommodate board layout for SO-DIMMs. As shown in Figure 29, the first
two memories installed are on the left side of the chip and the upgrade is on the right hand side. This is
different to RIVA 128 which populated the top two chips first and then populated the lower (far left and far
right) memories as the upgrade. Both forms of 64-bit bus are supported in RIVA128ZX and the data paths
populated are determined by the BIOS during its boot memory detection sequence.
Figure 29.
Upgrade from 64-bit 4MByte to 128-bit 8MByte SGRAM via SO-DIMM
SGRAM INTERFACE
RIVA128ZX
FBD[31:0]
FBD[95:64]
Bank 2
512K
x32
FBD[63:32]
FBD[127:96]
Upgrade to
8MByte via
SO-DIMM
First two
memories
installed
Bank 0
512K
x32
Bank 1
512K
x32
Bank 3
512K
x32
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.
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RIVCF256H 制造商:STEC Inc 功能描述:256MB COMPACT FLASH - Bulk
RIVET DPG FLOAT MTG 制造商:ITT Interconnect Solutions 功能描述:Rack & Panel
RIVET(SSR389) 制造商: 功能描述: 制造商:undefined 功能描述:
RIVET-DPD-PIN-INSERT-SPCR 制造商:ITT Interconnect Solutions 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*