User Guide

Technical Documentation
NHD–4
System Module
P.A.M.S
Page 4–7
Original 11/97
Table 2. MCU Block Connections (continued)
NotesTypeSignal Name
VCHRGMON IN A/D input for monitoring of charging voltage
HOOK_RXD2 IN A/D input – Hook indicator (Phone on or off Hook)
BTEMP IN A/D input for monitoring Battery temp.
RFTEMP IN A/D input for monitoring RFTEMP 1 and 2 temp.
BTYPE IN A/D input for monitoring Battery type.
RSSI IN A/D input for monitoring RSSI.
JCONN IN A/D input for monitoring Accessory type.
MBUS_DET IN MBUS data input.
MCU Memory Block
Table 3. MCU Memory Block Connections
Signal Name Type Notes
MCUAD IN MCU Address Bus
MCUDA I/O MCU Data Bus
XMCU_RD IN MCU Read used as Output Enable
XMCU_WR IN MCU Write used as Read/Write select
XFLASH_CS IN Flash Chip Select
XSRAM_CS IN SRAM Chip Select
XROM_CS IN EEPROM Chip Select