SPD6729QCE Intel, SPD6729QCE Datasheet - Page 26

• Manufacturer Part Number: SPD6729QCE
• Description: PCI To PC Card (PCMCIA) Controller 208-Pin MQFP
• Manufacturer: Intel

Specifications of SPD6729QCE

• Package: 208MQFP
• Operating Temperature: 0 to 70 °C

PD6729 — PCI-to-PC Card (PCMCIA) Controller
3.1.3
26
Start Address Registers
End Address Registers
Figure 5. I/O Window Organization
System I/O Map
System I/O Map
Zoomed Video Port
The PD6729 supports the implementation of the ZV (Zoomed Video) Port at the PC Card interface.
The ZV Port provides a direct connection between a PC Card and VGA controller and an audio
DAC. It allows the PC Card to directly write video data to an input port of a graphics controller and
audio data to a digital-to-analog converter.
The PD6729 supports the ZV Port in the “bypass” mode during which the signals are directly
routed from the PC Card bus to the video port of the VGA controller. Rerouting is accomplished by
tristating address lines A[25:4] from the PD6729. The PD6729 enters the ZV Port mode when the
Multimedia Enable bit (bit 0 of the Misc. Control 1 register at index 16h) and the Multimedia Arm
bit (bit 7 of the Misc. Control 3 register at extended index 25h) are set to a ‘1’.
Figure 6
refer to the application note Zoomed Video (ZV) Port Implementation (AN-PD10).
shows an example of the ZV Port implementation using the PD6729. For more details,
PCI I/O Address Space
4 Gbytes
I/O Window
.
.
.
.
First 64 Kbytes
Offset Address Registers
Card I/O Map
PCMCIA I/O Address Space
Card I/O Window
64 Mbytes
(selects 16-Mbyte page)
Upper Address Register
System Memory Map
First 64 Kbytes
supported by
PD6729
Datasheet