CS22250 datasheet(17/32 Pages) CIRRUS

17 / 32 page

CS22250 Wireless 10BT Controller

17 of 32

DS551PP2

Rev. 3.0

www.cirrus.com

ETXEN

Output

Transmit enable. This signal is synchronous to ETXCLK. It enables data

transmission.

ECOL

Input

Collision signal. This input signal indicates whether a collision occurred

in the network.

ECRS

Input

Carrier detect. An input from the PHY layer thatindicates there is activity

in the network.

ERXCLK

Input

Receive clock. This is the reference receive clock from the PHY layer.

ERXDO

Input

Receive data. It is synchronized with receive clock.

System Reset

EXT_RESET

Input

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.

CSS

Input

(Clear Settings Set) Network security ID reset request.

CSR

Output

(Clear Settings Reset) Network security ID reset successful.

External Control Bus

OSAD[31:0]

Bi-directional

Multiplexed address and data bus on the external control bus to a shared

32-bit bus on the external control bus. Also, de-multiplexing of the data

from external control bus to the internal control bus.

CS22250 Datasheet(PDF) 17 Page - Cirrus Logic