CS22230 Datasheet, PDF (16/29 Pages) Cirrus Logic – WIRELESS PCI/USB CONTROLLER

USBVM
USB_ENUM
Bi-directional
Differential USB data minus.
Output
USB Enumeration – Indicates disconnect/connect event. USB_ENUM is
used to pull the D+ line high, indicating to the host or hub a USB bus “full
rate” connection is active.
Debug Interface
TDO
Test data output.
TDI
Test data input. The input has an integral pull up.
TCK
Test clock signal.
TMS
Test mode select. The input has an integral pull up.
nTRST
Test interface reset. The input has an integral pull up.
Output
Input
Input
Input
Input
Miscellaneous Interface
SPIO_8,12,13,16
Bi-directional
Special Purpose I/O reserved for supporting custom interfaces.
Note: SPIO 13 is used for USB_ENUM during USB modes.
nTEST
Input
Chip test mode pin. Used in conjunction with SMNCS0, SMDQM[0:1]. Pull
up for normal operation.
Power and Ground
VCC (5V and 3.3V)¹
5V inputs. There are a total of 3 pins.
Input
VDD (3.3V)
3.3V inputs. There are a total of 26 pins.
Input
VEE (1.8V)
1.8 inputs to the core. There are a total of 9 pins.
Input
VSS
Ground. There are a total of 33 pins.
Input
1 _{5V or 3.3V depending on desired PCI configuration}
CS22230 Mini PCI / USB Wireless Controller
16 of 29
www.cirrus.com
DS558PP1 Rev. 1.0