Table 2−14. CardBus PC Card Interface Control Terminals (Continued)
†
SKT B TERMINAL
SKT A TERMINAL
I/O
TYPE
PU/
PD
POWER
RAIL
DESCRIPTION
INPUT OUTPUT
NAME
NO.
NAME
NO.
CardBus stop. CSTOP is driven by a CardBus target
to request the initiator to stop the current CardBus
transaction. CSTOP is used for target disconnects,
and is commonly asserted by target devices that do
not support burst data transfers.
V
V
/
CCA
CCB
A09
B02
J17
I/O
PCII4
PCII6
PCIO4
PU3
A_CSTOP
B_CSTOP
CardBus status change. CSTSCHG alerts the system
to a change in the card status, and is used as a
wake-up mechanism.
V
V
/
CCA
CCB
F14
H17
I
SW1
A_CSTSCHG
A_CTRDY
B_CSTSCHG
B_CTRDY
CardBus target ready. CTRDY indicates the ability of
the CardBus target to complete the current data
phase of the transaction. A data phase is completed
on a rising edge of CCLK, when both CIRDY and
CTRDY are asserted; until this time, wait states are
inserted.
V
V
/
CCA
CCB
A08
I/O
I/O
PCII1
TTLI2
PCIO1
TTLO1
PU5
PU4
CardBus voltage sense 1 and CardBus voltage sense
2. CVS1 and CVS2 are used in conjunction with
CCD1 and CCD2 to identify card insertion and
interrogate cards to determine the operating voltage
and card type.
A_CVS1
A_CVS2
A03
E08
B_CVS1
B_CVS2
C18
F19
V
V
/
CCA
CCB
†
These terminals are reserved for the PCI6611 and PCI6411 controllers.
2−25
TI [ TEXAS INSTRUMENTS ]
