User's Manual
50
68P80801H45-1 1/20/2002
800/900/1500 MHz Base Radios EBTS System Manual - Vol 2
Base Radio Controller
QUAD Channel
Base Radio Controller
Functional Block Diagram
Figure 14
800 and 900 MHz QUAD Channel Base Radio Controller Functional Block
Diagram (Sheet 2 of 2)
HOST
MICRO-
ETHERNET
SERIAL
INTERFACE
TRANS-
CD
RCV RX
TRMT TX
CLSN
10BASE2
COAX
ETHERNET
SERIAL
INTERFACE
CEIVER
ISOLATION
TRANSFORMER
PROCESSOR
SCC1
8
SDRAM
4M x 16
SDRAM
4M x 16
SDRAM
4M x 16
SDRAM
4M x 16
GPLA0, A[8,9,17,18,20:29],RAS,CAS,WE
CS2
CS3
D[0:31]
D[0:15]
D[16:31]
D[0:15]
D[16:31]
BUFFER
BUFFER
BUFFER
BUFFER
BUFFER
BUFFER
D[0:31]
D[0:7]
A[10:31]
MA[21:0]
DSP_D[31:24]
A[0:7]
DSP_A[31:24]
MD[31:0]
EIA-232
BUS
RECEIVERS/
DRIVERS
2
STATUS PORT
(9 PIN D CONNECTOR
ON BRC FRONT PANEL)
2
BUFFER
3
3
SPI BUS
TO/FROM
STATION MODULES
FLASH
1M x 16
FLASH
1M x 16
FLASH
1M x 16
FLASH
1M x 16
CS0
CS1
MD[0:15]
MD[16:31]
MD[0:15]
MD[16:31]
16
16
16
16
16
16
16
16
MA[2:21]
MA[2:21]
EEPROM
32k x 8
MD[24:31]
MA[0:14]
CS4
P1_OUT
LATCH
P0_OUT
LATCH
MD[0:32]
MD[24:31]
P0_IN
BUFFER
MD[16,17,20-24,28-31]
STATUS BUS
FROM
STATION MODULES
P0_IN
8
CONTROL BUS
TO
STATION MODULES
P0_OUT/P1_OUT
32
8
TRANSMIT
DIGITAL
SIGNAL
PROCESSOR
(TX DSP)
SINGLE END
TO DIFFERENTIAL
TRANSMIT
CLOCK AND
FRAME SYNCH
CIRCUITRY
I/Q DATA
SERIAL DATA
TO EXCITER
DIFFERENTIAL
TO SINGLE END
RX1 SERIAL DATA
RECEIVE
DIGITAL
SIGNAL
PROCESSOR
(RX DSP 1)
RECEIVE
DIGITAL
SIGNAL
PROCESSOR
(RX DSP 2)
TISIC
A[0:5]
D[0, 8:23]
PARALLEL
TO SERIAL
CIRCUITRY
D[16:23]
D[16:23]
D[0, 23]
SPI BUS TO
RECEIVER 1 & 2
SPI BUS TO
RECEIVER 3 & 4
2.4 MHz
1 PPS TIMING, CONTROL/ SLOT TIMING/RESET
NETWORKED
SCI
16.8MHZ
48 MHZ
SPI
BUS
SPI
BUS
EXCITER
SPI
CONTROL
DSP SPI
SPI BUS
TO EXCITER
DIGITAL SIGNAL PROCESSING
CIRCUITRY
DIGITAL SIGNAL PROCESSING
CIRCUITRY
DIFFERENTIAL
TO SINGLE END
DIFFERENTIAL
TO SINGLE END
DIFFERENTIAL
TO SINGLE END
50 MHZ
CLOCK
FRONT PANEL
RESET
DRAM MEMORY
ETHERNET INTERFACE
NON-VOLATILE MEMORY
EXPANDED STATUS INPUT
AND OUTPUT CONTROL CIRCUITRY
EXTENDED HOST
BUS BUFFERS
40
TO EXCITER
5MHZ
1PPS
RX2 SERIAL DATA
RX3 SERIAL DATA
RX4 SERIAL DATA
HOST ADDRESS BUS
HOST DATA BUS
HOST BUFFERED DATA BUS
HOST BUFFERED ADDRESS BUS
HOST-DSP BUFFERED DATA BUS
HOST-DSP BUFFERED ADDRESS BUS
SERIAL MANAGEMENT CONTROLLER (SMC2)
SERIAL PERIPHERAL INTERFACE