Simoco SRP8000 SERIES, Service Manual

Page: 33 / 94

TP0332/2 3.9
CONTROL PROCESSOR SYSTEM
The heart of the control processor system consists of the following:
(3) H8/3002 Processor (IC600)
(4) 32KByte Static RAM (IC601)
(5) 512KByte Flash EPROM (IC602)
(6) MAX512CSD Triple 10-bit DAC (IC605).
The processor controls and monitors the radio functions by a variety of types of digital and analogue
interfaces. The digital interfaces used are as follows:
(1) Direct control from processor port pins (General Control)
(2) Memory mapped peripheral via an 8-bit data bus (MMI LCD Controller Chip)
(3) IIC serial bus (IC701 Baseband chip and Options)
(4) 3-wire Serial Bus (IC605 Triple DAC, IC401 Synthesizer)
(5) Combined RS232 and IIC Serial Bus (Smart Interface).
Figure 3.6 Various Types of Digital Interfaces
The direct processor port pin control signals that interface to various blocks are shown in Figure 3.7.
Figure 3.7 Direct Processor Port Interface Signals
TXS (CLK)
TXD0 (DATA)
SYNTH_EN
DAC CS
IC605
TRIPLE
DAC
IC600
H8/3002
SCL
SDA
IC701
BASEBAND
TxD/SCL
RxD/SDA
TxD_OUT
RxD_OUT
SMART
INTERFACE
D7_D0 8
LCD_CS
A20
PORT PINS - GENERAL CONTROL
MMI
CONNECTOR
SK4
ANCILLARY
DUAL-JACK
SOCKET
OPTIONS
CONNECTOR
SK5
IC401
SYNTHESISER
IC600
H8/3002
BLITE
PTT1
PTT3
RED
GREEN
LS_ON
KEY_ROW1
KEY_ROW2
FAST
LOCK
L01_EN
User Interface
(MMI and
Smart Interface)
Frequency
Generation
TX_ON
RX_ON
WDOG#RXD0
OFF
CH_SP
SQUELCH
PA_ON
FFSK_CD
FFSK_DATA
FFSK_RX_CLK
TXS_IN
TX_ON
PSU and
On/Off Control
Receiver
Transmitter
Baseband