User Guide

PAMS
System Module DB6
NHB–3
Technical Documentation
Original 26/97
Page 4–32
Signal name Signal description From
BATDET Battery on place detection, if line go CTRLU
to ”0”, ASIC have interrupt and drive
UIM card down.
CHRDET Charger voltage detection, ”0”=no PWRU
charger, ”1”=charger connected
External Signals and Connections, Outputs
Signal name Signal description To
INT0,INT1 Interrupts for DSP DSPU
NMI Not maskable interrupt request CTRLU
IRQX Interrupt request CTRLU
RESETX Master (power up) reset CTRLU,RFI
DSP1RSTX Reset for the DSP DSPU
UIMRESET Reset for the UIM UIF
WRX Write strobe RFI
RDX Read strobe RFI
RFIAD(3:0) RFI address bus RFI
SCLK synthesizer load clock RF
SDATA synthesizer load data RF
SENA1 UHF and VHF PLL enable RF
RXPWR RX circuitry power enable RF
TXPWR TX circuitry power enable RF
SYNTHPWR synthesizer circuitry power enable RF
TXP Transmitter power control enable RF
TXL Transmitter low power enable RF
MCUCLK Main clock for MCU CTRLU
DSPCLKEN DSP clock circuit enable DSPU
RFICLK RFI master clock RFI
RFI2CLK RFI sleep clock RFI
CODEC_CLK PCM data clock DSPU,AUDIO
PCMDATRCLKX Inverted PCM data clock, used as input DSPU
clock for Codec and DBUS interface
SYNC Bit sync clock AUDIO