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): 53/85頁
文件大?。?/td> 609K
代理商: RIVA128ZX
128-BIT 3D MULTIMEDIA ACCELERATOR
RIVA128ZX
53/85
9
BIOS and initialization code for the RIVA128ZX is accessed from a 32KByte ROM. The RIVA128ZX mem-
ory bus interface signals
FBD[15:0]
and
FBD[31:24]
are used to address and access one of 64KBytes of
data respectively. The unique decode to the ROM device is provided by the
ROMCS#
chip select signal.
Figure 63.
ROM interface
BOOT ROM INTERFACE
ROM interface timing specification
Figure 64.
ROM interface timing diagram
FBD[15:0]
FBD[31:24]
FBD[17]
FBD[16]
ROMCS#
D[7:0]
A[15:0]
CS
ROM
WE
OE
RIVA128ZX
ROM Read
t
BAS
t
BRCS
t
BAH
t
BRCA
t
BRV
t
BRH
t
BDBZ
t
BDS
t
BDH
t
BDZ
t
BOS
address
data
FDB[15:0]
ROMCS#
OE# (FBD[16])
WE# (FBD[17])
FDB[31:24]
ROM Write
t
BAS
t
BRCS
t
BAH
t
BWDS
t
BWDH
address
data
FDB[15:0]
ROMCS#
OE# (FBD[16])
WE# (FBD[17])
FDB[31:24]
t
BWS
t
BWL
t
BOH
相關(guān)PDF資料
PDF描述
RIVA128 RIVA 128⑩ 128-BIT 3D MULTIMEDIA ACCELERATOR
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