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RIVA128ZX Datasheet(PDF) 30 Page - STMicroelectronics

Part # RIVA128ZX
Description  128-BIT 3D MULTIMEDIA ACCELERATOR
PDF  85 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

RIVA128ZX Datasheet(HTML) 30 Page - STMicroelectronics

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128-BIT 3D MULTIMEDIA ACCELERATOR
RIVA128ZX
30/85
6
FRAMEBUFFER INTERFACE
The RIVA128ZX framebuffer interface supports SDRAM and SGRAM memory. Using SDRAM it can be
configured with an 8MByte 64-bit data bus. With SGRAM it can be configured with a 2 or 4MByte 64-bit
data bus or a 4 or 8MByte 128-bit data bus. The memory configurations supported by RIVA128ZX are
shown in Table 7. All of the framebuffer signalling environment is 3.3V.
Table 7.
RIVA128ZX memory configurations
8Mbit
2 internal bank
SGRAM
16Mbit
2 internal bank
SGRAM
16Mbit
4 internal bank
SGRAM
16Mbit
1M x 16
SDRAM
2MByte
2 devices
64-bit
N/A
N/A
N/A
4MByte
4 devices
128-bit
2 devices
64-bit
2 devices
64-bit
N/A
8MByte
2 banks of 4 devices
128-bit
4 devices
128-bit
4 devices
128-bit
4 devices
64-bit



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