參數(shù)資料
型號(hào): RIVA128
廠商: 意法半導(dǎo)體
英文描述: RIVA 128⑩ 128-BIT 3D MULTIMEDIA ACCELERATOR
中文描述: 麗娃128⑩128位3D多媒體加速器
文件頁數(shù): 40/85頁
文件大小: 609K
代理商: RIVA128
128-BIT 3D MULTIMEDIA ACCELERATOR
RIVA128ZX
40/85
Figure 40.
SDRAM/SGRAM read to precharge, read latency of three
NOTE
1
FBDQM
is active (low)
SDRAM/SGRAM Write to Precharge
Figure 41.
Figure 42.
SDRAM/SGRAM Active to Read or Write
Table 12.
SDRAM/SGRAM timing parameters
Symbol
t
CS
Parameter
Min.
Max.
Unit
Notes
FBCSx
,
FBRAS#
,
FBCAS#
,
FBWE#
,
FBDQM
setup time
3
ns
t
CH
FBCSx
,
FBRAS#
,
FBCAS#
,
FBWE#
,
FBDQM
hold time
1
ns
t
MTC
t
RAS
t
RC
t
RCD
Load Mode register command to command
2
t
CK
Active to Precharge command period
7
t
CK
Active to Active command period
10
t
CK
Active to Read or Write delay
3
t
CK
precharge
nop
nop
active
bank(s)
bank,
row
data n
t
RP
read
bank,
col n
FBCLKx
Command
FBA[10:0]
FBD[63:0]
write
nop
nop
precharge
nop
nop
active
bank(s)
row
t
RP
t
WR
bank, col n
write data n
write data
n+1
FBCLKx
FBDQM#
Command
FBA[10:0
]
FBD[63:0]
active
nop
nop
t
RCD
read or write
FBCLKx
Command
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