CS22220 Datasheet, PDF (16/34 Pages) Cirrus Logic – WIRELESS PCI/USB CONTROLLER

nPCWAIT
nIOIS16
nPCINPACK
nPCIORD
nPCIOWR
Output
The wait signal is asserted by a PC card to delay completion of the
memory access or I/O access.
Output
The nIOIS16 output signal is asserted when the address at the socket
corresponds to an I/O address to which the card responds, and the I/O
port addressed is capable of 16-bit access.
Output
Input port acknowledge. This output signal is asserted when the PC card
is selected and can respond to an I/O read cycle at the address on the
address bus.
Input
The host asserts nIORD to read data from a PC card’s I/O space.
Input
The host asserts nPCIOWR to write data to a PC card’s I/O space.
System and PC Card Reset
EXT_RESET
Input
The reset signal clears the configuration option register and places the
card in an unconfigured state.The system must place the RESET signal in
a high-Z state during card power up. The signal must remain high
impedance for at least 1 msec after Vcc becomes valid.
JTAG Interface
TDO
Output
Test data output. This input has an integral pull up.
TDI
Input
Test data input.
TCK
Input
Test clock signal.
TMS
Input
Test mode select. This input has an internal pull up.
nTRST
Input
Test interface reset. This input has an internal pull up.
CS22220 Wireless PCMCIA Controller
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DS557PP2 Rev. 3.0