STG3005A2S STMicroelectronics, STG3005A2S Datasheet - Page 33

• Manufacturer Part Number: STG3005A2S
• Description: 128-BIT 3D MULTIMEDIA ACCELERATOR
• Manufacturer: STMicroelectronics

128-BIT 3D MULTIMEDIA ACCELERATOR
Figure 30. 4 MByte SGRAM configurations using 16Mbit devices
NOTE
1 The 64-bit bus data paths populated by RIVA128ZX are determined by the BIOS during its boot memory detection se-
FBDQM[0]#
FBDQM[0]#
FBDQM[1]#
FBDQM[2]#
FBDQM[3]#
FBDQM[1]#
FBDQM[2]#
FBDQM[3]#
FBD[127:0]
FBD[127:0]
quence.
FBCS[0]#
FBCS[0]#
FBCLK0
FBCLK0
512K 32
512K 32
SGRAM
SGRAM
Bank 0
Bank 0
FBD[31:0]
FBD[31:0]
b. Compatible with RIVA128ZX layout
implementing SO-DIMM upgrade to 8Mbytes
a. RIVA 128 layout compatible
FBDQM[10]#
FBDQM[11]#
FBDQM[4]#
FBDQM[8]#
FBDQM[5]#
FBDQM[6]#
FBDQM[7]#
FBDQM[9]#
FBCS[0]#
FBCS[1]#
FBCLK1
FBCLK0
512K 32
512K 32
SGRAM
SGRAM
Bank 1
Bank 2
FBD[63:32]
FBD[95:64]
RIVA128ZX
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