STG3000X-RIVA128 STMicroelectronics, STG3000X-RIVA128 Datasheet - Page 34

• Manufacturer Part Number: STG3000X-RIVA128
• Description: 128-BIT 3D MULTIMEDIA ACCELERATOR
• Manufacturer: STMicroelectronics

RIVA 128
Figure 31. SGRAM read to precharge, read latency of two
NOTE
Figure 32. SGRAM read to precharge, read latency of three
NOTE
Figure 33. SGRAM Write to Precharge
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Command
FBD[63:0]
FBDQM#
FBA[9:0 ]
FBCLKx
1
1
FBDQ M is active (low)
FBDQ M is active (low)
write data n
bank, col n
write
Command
Command
FBD[63:0]
FBD[63:0]
FBA[9:0]
FBA[9:0]
FBCLKx
FBCLKx
write data
nop
n+1
bank, col n
bank,
col n
read
read
nop
t
WR
precharge nop
bank(s)
prechar ge
bank(s)
precharge
bank(s)
128-BIT 3D MULTIMEDIA ACCELERATOR
t
nop
RP
data n
t
RP
nop
data n
nop
nop
active
bank,
row
bank,row
t
RP
active
nop
active
row