Nokia MOBILE TERMINAL Service Manual page 222

SiModule
pin
SPI_SDO OUT
SPI_CLK IN
SPI_CSx IN
WLAN-BT COMMS
BT_RF_AC IN
TIVE
BT_PRIORI IN
TY
BT_FREQ IN
BT_TX_CO OUT
NFx
CONTROL
PMEN IN
WLAN_IR OUT
Q
CLK_REQ OUT
CLOCKING
SLEEP_CLK IN
CLK IN
RF
ANT OUT
BT_RF IN
POWER
VIO Power
VBAT Power
VSS Power
Page 6 –20
In/Out
COMPANY CONFIDENTIAL
Copyright © 2008 Nokia. All rights reserved.
SPI data from WLAN module to Host.
Master in Slave out, MISO. Clocked out on the rising or
falling edge of the clock (sw configurable in the initial
command).
SPI clock supplied from Host.
Idle state of the clock is Low.
SPI Chip select from Host. Active low
Indicates BT activity to the WLAN PTA (Packet Traffic
Arbitration).
Asserted high for a BT transaction and remains active
for the duration of the transaction.
Indicates Status of BT activity to WLAN PTA.
BT priority indication signal.
Not used for Size 4.0 implementation.
WLAN PTA decision signal to BT.
WLAN Enable signal from Host.
Host wake-up request from WLAN Module. Active High
Clock request from WLAN module. Active High.
Cellular engine 32.768KHz Sleep Clock
Input capacitance is 7Pf max.
System clock for WLAN Module. Typically 38.4MHz
from external Tcxo.
Antenna input from product specific physical ISM
antenna.
RF feed to Bluetooth
Cellular engine IO supply
Battery supply from Phone.
Ground Plane
System Module and User Interface
Function
RM-356
Issue 1