參數(shù)資料
型號： PCI1510GVF
廠商： Texas Instruments, Inc.
英文描述： PC CARD CONTROLLERS
中文描述： PC卡控制器
文件頁數(shù)： 42/128頁
文件大小： 735K
代理商： PCI1510GVF
34
3.5
PC Card Applications
This section describes the PC Card interfaces of the controller.
Card insertion/removal and recognition
Zoomed video support
Speaker and audio applications
LED socket activity indicators
CardBus socket registers
3.5.1
PC Card Insertion/Removal and Recognition
The
PC Card Standard
(release 7.2) addresses the card-detection and recognition process through an interrogation
procedure that the socket must initiate on card insertion into a cold, nonpowered socket. Through this interrogation,
card voltage requirements and interface (16-bit versus CardBus) are determined.
The scheme uses the card-detect and voltage-sense signals. The configuration of these four terminals identifies the
card type and voltage requirements of the PC Card interface. The encoding scheme is defined in the
PC Card
Standard
(release 7.2) and in Table 31.
Table 31. PC Card Card-Detect and Voltage-Sense Connections
CD2//CCD2
Ground
CD1//CCD1
Ground
VS2//CVS2
Open
VS1//CVS1
Open
KEY
5 V
INTERFACE
16-bit PC Card
VOLTAGE
5 V
Ground
Ground
Open
Ground
5 V
16-bit PC Card
5 V and 3.3 V
Ground
Ground
Ground
Ground
5 V
16-bit PC Card
5 V, 3.3 V, and X.X V
Ground
Ground
Open
Ground
LV
16-bit PC Card
3.3 V
Ground
Connect to CVS1
Open
Connect to CCD1
LV
CardBus PC Card
3.3 V
Ground
Ground
Ground
Ground
LV
16-bit PC Card
3.3 V and X.X V
Connect to CVS2
Ground
Connect to CCD2
Ground
LV
CardBus PC Card
3.3 V and X.X V
Connect to CVS1
Ground
Ground
Connect to CCD2
LV
CardBus PC Card
3.3 V, X.X V, and Y.Y V
Ground
Ground
Ground
Open
LV
16-bit PC Card
X.X V
Connect to CVS2
Ground
Connect to CCD2
Open
LV
CardBus PC Card
X.X V
Ground
Connect to CVS2
Connect to CCD1
Open
LV
CardBus PC Card
X.X V and Y.Y V
Connect to CVS1
Ground
Open
Connect to CCD2
LV
CardBus PC Card
Y.Y V
Ground
Connect to CVS1
Ground
Connect to CCD1
Reserved
Ground
Connect to CVS2
Connect to CCD1
Ground
Reserved
3.5.2
Parallel Power-Switch Interface (TPS2211A)
The controller provides a parallel interface for control of the PC Card power switch. The VCCD and VPPD terminals
are used with the TI TPS2211A single-slot PC Card power-switch interface to provide power-switch support.
Figure 33 illustrates a typical application, where the controller represents the PC Card controller.
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