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PCI1410 Datasheet(PDF) 39 Page - Texas Instruments

Part # PCI1410
Description  PC CARD CONTROLLERS
PDF  145 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCI1410 Datasheet(HTML) 39 Page - Texas Instruments

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3–5
PCI1410
(PC Card
Controller)
12 V
Power Supply
VPP1
VPP2
VCC
VCC
PC Card
TPS2211
5 V
3.3 V
VCCD0
12V
5V
3.3V
AVPP
AVCC
Supervisor
SHDN
SHDN
VCCD1
VPPD0
VPPD1
OC
Figure 3–4. TPS2211 Typical Application
3.5.3
Zoomed Video Support
The PCI1410 allows for the implementation of zoomed video for PC Cards. Zoomed video is supported by setting
bit 6 (ZVENABLE) in the card control register (see Section 4.32) on a per-socket function basis. Setting this bit puts
PC Card 16 address lines ADDR25–ADDR4 of the PC Card interface in the high-impedance state. These lines can
then transfer video and audio data directly to the appropriate controller. Card address lines ADDR3–ADDR0 can still
access PC Card CIS registers for PC Card configuration. Figure 3–5 illustrates a PCI1410 ZV implementation.
CRT
VGA
Controller
Audio
Codec
PCI1410
19
4
Zoomed
Video Port
PCM
Audio
Input
PCI Bus
PC Card
Interface
Video
Audio
19
4
PC Card
Motherboard
Speakers
Figure 3–5. Zoomed Video Implementation Using PCI1410
Not shown in Figure 3–5 is the multiplexing scheme used to route a socket ZV source or an external ZV source to
the graphics controller. A typical external source might be provided from a high-speed serial bus like IEEE 1394. The
PCI1410 provides ZVSTAT and ZVSEL0 signals on the multifunction terminals to switch external bus drivers.
Figure 3–6 shows an implementation for switching between two ZV streams using external logic.



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