RIVA128ZX datasheet(22/85 Pages) STMICROELECTRONICS

22 / 85 page

128-BIT 3D MULTIMEDIA ACCELERATOR

RIVA128ZX

22/85

Figure 14.

AGP timing diagram (2X data transfer mode)

Table 3.

AGP timing parameters (2X data transfer mode)

Figure 15.

AGP Strobe/Data turnaround timing diagram (2X data transfer mode)

Table 4.

AGP Strobe/Data turnaround timing parameters (2X data transfer mode)

Symbol

Parameter

Min.

Max.

Unit

Notes

tTSF

AGPCLK to transmit strobe falling edge

tTSR

AGPCLK to transmit strobe rising edge

tDVB

Output data valid before strobe

1.7

tDVA

Output data valid after strobe

1.7

tRSSU

Receiver strobe setup time to AGPCLK

6ns

tRSH

Receiver strobe hold time from AGPCLK

1ns

tDSU

Input data to strobe setup time

tDH

Input data to strobe hold time

Symbol

Parameter

Min.

Max.

Unit

Notes

tOND

Float to active delay

-1

tOFFD

Active to float delay

tONS

Strobe active to strobe falling edge setup

tOS

Strobe rising edge to strobe float delay

tDVB

tDVA

tTSF

tDVB

tDVA

tTSR

tRSH

tDSU

tDH

tDSU

tDH

tRSSU

Data1

Data2

Data3

Data4

Data1

Data2

Data3

Data4

AGPCLK

Output data

Output strobe

Input data

Input strobe

tOFFS

tOFFD

tOND

tONS

AGPCLK

PCIAD[31:0]

AGPADSTBx

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