Nokia 8390 Manuales De Servicio

PAMS Technical Documentation

System Module & UI

NSB-8

Issue 1 01/02

ãNokia Corporation

Page 25

UPP (Universal Phone Processor) is the digital ASIC of the baseband. UPP includes 8 MBit 
internal RAM, ARM7 Thump 16/32-bit RISC MCU core, LEAD3 16-bit DSP core, ROM for 
MCU boot code and all digital control logic.

Main functions of the custom logic are:

1 Interface between system logic and MCU/DSP (BodyIf)

2 Clocking, timing, sleep and interrupt block (CTSI) for system timing control

3 MCU controlled general purpose USART, MBUS USART and general purpose IOs 

(PUP).

4 SIM card interface (SIMIf)

5 GSM coder (Coder)

6 GPRS support (GPRSCip)

7 Interfaces for keyboard, LCD and UEM (UIF)

8 Accessory interface for IrDA SIR, IrDA FIR and LPRF (AccIf)

9 SW programmable RF interface (MFI)

10 Programmable serial interface for Hagar RFIC (SCU)

11 Test interface (TestIf)

For the MCU UPP includes ROM, 2 kbytes, that is used mainly for boot code of MCU. To
speed up the MCU operation small 64 byte cache is also integrated as a part of the MCU

 

33nF 

 

MIC1B 

MIC1P 

2k2 

33nF 

MIC1N 

2k2 

10pF 100nF 

10pF 

600ohm@100MHz 

10pF 

2k2