MB86296 Datasheet, PDF (42/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
2.3.5 Graphics memory interface
Pin name
MD31 - MD0
MD53 - MD32
MD55 - MD54
MD63 - MD56
MA0 to 14
MRAS
MCAS
MWE
DQM5 - DQM0
DQM7 - DQM6
MCLK0
MCLK1
Graphics memory interface pins
I/O
I/O
I/O
I/O
I/O
Output
Output
Output
Output
Output
Output
Output
Input
Description
Graphics memory bus data
Graphics memory bus data or digital R7-0, G7-0,
B7-2 output (when XRE = 0)
Graphics memory bus data or SCL, SDA (when
XRE=0)
Graphics memory bus data or video input (when
XRE=0)
Graphics memory bus data
Row address strobe
Column address strobe
Write enable
Data mask
Data mask or digital B1-0 output (when XRE = 0)
Graphics memory clock output
Graphics memory clock input
Connect the interface to the external memory used as memory for image data. The interface can
be connected to 64-/128-/256-Mbit SD RAM (16- or 32-bit length data bus) without using any
external circuit.
64 bits or 32 bits can be selected for the memory bus data. .
Connect MCLKI to MCLK0.
When XRE is fixed at “1”, MD63 - MD32 and DQM7 - DQM6 can be used as graphics memory
interface.
When XRE is fixed at “0”, these signals can be used as digital RGB output and digital video data
input.
MB86296S<Coral-PA>
32
Specification Manual Rev0.1