RIVA128ZX Datasheet, PDF (22/85 Pages) STMicroelectronics – 128-BIT 3D MULTIMEDIA ACCELERATOR

RIVA128ZX
128-BIT 3D MULTIMEDIA ACCELERATOR
Figure 14. AGP timing diagram (2X data transfer mode)
AGPCLK
Output data
Output strobe
Input data
Input strobe
Data1
Data2
tTSF
tDVA
tDVB
tTSR
tDVA
tDVB
Data3
Data1
Data2
Data3
tRSH
tDSU
tDH
tDSU
tDH
tRSSU
Data4
Data4
Table 3. AGP timing parameters (2X data transfer mode)
Symbol
tTSF
tTSR
tDVB
tDVA
tRSSU
tRSH
tDSU
tDH
Parameter
AGPCLK to transmit strobe falling edge
AGPCLK to transmit strobe rising edge
Output data valid before strobe
Output data valid after strobe
Receiver strobe setup time to AGPCLK
Receiver strobe hold time from AGPCLK
Input data to strobe setup time
Input data to strobe hold time
Min.
2
1.7
1.7
6
1
1
1
Max.
Unit
12
ns
20
ns
ns
ns
ns
ns
ns
ns
Figure 15. AGP Strobe/Data turnaround timing diagram (2X data transfer mode)
Notes
AGPCLK
PCIAD[31:0]
AGPADSTBx
tOFFD
tOFFS
tOND
tONS
Table 4. AGP Strobe/Data turnaround timing parameters (2X data transfer mode)
Symbol
tOND
tOFFD
tONS
tOS
Parameter
Float to active delay
Active to float delay
Strobe active to strobe falling edge setup
Strobe rising edge to strobe float delay
Min.
-1
1
6
6
Max.
Unit
9
ns
12
ns
10
ns
10
ns
Notes
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