User's Manual

68P80801H45-1 1/20/2002 45
EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios
Base Radio Controller
ETHERNET
SERIAL
INTERFACE
ISOLATION
TRANSFORMER
TRANSCEIVER
HOST BUFFERED DATA BUS
HOST ADDRESS BUS
HOST BUFFERED DATA BUS
HOST ADDRESS BUS
HOST DATA BUS
DRAM ADDRESS
MULTIPLEXER
COLUMN/ROW
SELECT
DRAM
COLUMN
ADDRESS
DRAM
ROW
ADDRESS
16.5 MHZ CLK
SERIAL COMMUNICATIONS BUS
SERIAL COMMUNICATIONS BUS
ROW
SELECT
(RAS*)
COL
SELECT
(CAS*)
DRAM
ADDRESS
HOST
GLUE
ASIC
33 MHZ
TIMING
CIRCUITRY
BUFFERS
EPROM
512K X 8
8K X 8
EEPROM
CODEPLUG
32K X 8
SRAM
32K X 8
SRAM
A1-A11
A10-A22
A1-A19
A1-A19
A1-A15
HOST
ADDRESS
A1-A18
4
8
STATUS PORT
(9 PIN D CONNECTOR
ON BRC FRONT PANEL)
RS-232 PORT
(9 PIN D CONNECTOR
ON BACKPLANE)
EIA-232
BUS
RECEIVERS/
DRIVERS
4
8
EPROM
512K X 8
BUFFERS
SPI BUS
SPI BUS
TO/FROM
STATION MODULES
3
HOST ADDRESS BUS
NON-VOLATILE MEMORY
HOST
MICRO-
PROCESSOR
HOST MICROPROCESSOR / HOST ASIC
HOST
ADDRESS
1-23
EIA-232
BUS
RECEIVERS/
DRIVERS
DRAM MEMORY
BUFFERS
VARIOUS INPUTS
FROM BRC &
STATION CIRCUITRY
INPUT/OUTPUT PORTS CIRCUITRY
I/O PORT P0 IN
HOST DATA BUS
I/O PORT P0 OUT
I/O PORT P1 OUT
I/O PORT P2 OUT
VARIOUS
CONTROL
LINES TO BRC &
STATION
CIRCUITRY
FROM HOST
MICROPROCESSOR
I/O PORT P1 IN
BUFFERS
BUFFERS
16
16
16
16
16
REMOTE STATION
SHUTDOWN CIRCUITRY
SHUTDOWN
(TO POWER
SUPPLY)
28V
I/O PORT
P2 OUT
FRONT PANEL LEDS
LED CONTROL
LINES
(P/O I/O PORT
P0 OUT)
BASE
RADIO
POWER
SUPPLY
EXCITER PA
CTL
R1 R2 R3
8
ETHERNET INTERFACE
CD
RX
TX
CLSN
RCV
TRMT
FROM
HOST
MICROPROCESSOR
ADDR BUS
DATA BUS
COPROCESSOR
ADDR BUS
COPROCESSOR
DATA BUS
10BASE2
COAX
ETHERNET
SERIAL
INTERFACE
HOST
INTERFACE
ETHERNET
COPROCESSOR
(82596DX)
A
EBTS286
010397SN
D0-D15
LANIIC
SHUTDOWN
CIRCUITRY
A1-A15
A1-A15
D0-D15
D0-D7
D0-D15
D0-D15
VCC
RESET SWITCH
(FRONT PANEL)
DRAM
1M X 16
A2-A23
Base Radio Controller
Figure 10 800/900 MHz Base Radio Controller Functional Block Diagram
(Sheet 1 of 2)