STG3000X-RIVA128 STMicroelectronics, STG3000X-RIVA128 Datasheet - Page 29

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

128-BIT 3D MULTIMEDIA ACCELERATOR
Figure 23. 2 and 4MByte SGRAM configurations
NOTE
FBDQM[0]#
FBDQM[1]#
FBDQM[2]#
FBDQM[3]#
FBDQM[4]#
FBDQM[5]#
FBDQM[6]#
FBDQM[7]#
FBD[127:0]
1
FBCS[0]#
FBCS[0]#
FBCLK0
FBCLK1
RIVA 128 has a pin reserved for an eleventh addre ss signal,FBA[10], which may be used in the future with pin compatible
16MBit 256K x 2 x 32 SDRAMs. This signal is a “no-connect” in the initial RIVA 128 but may be activated in a future pin-
compatible upgrade .If there is sufficient routing space it may be pruden t to route this signal to pin 30 of the 100 pin PQFP
SGRAM. [FBA10] should be pulled to GND with a 47K resistor.
FBD[63:32]
FBD[31:0]
FBDQM[10]#
FBDQM[11]#
FBDQM[12]#
FBDQM[13]#
FBDQM[14]#
FBDQM[15]#
FBDQM[8]#
FBDQM[9]#
Expansion to 4MBytes
FBCS[1]#
FBCS[1]#
FBCLK0
FBCLK1
FBD[127:96]
FBD[95:64]
RIVA 128
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