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Motorola VRM 500 Owners And Installation Manual page 23

Vehicular radio modem

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2

4 COMMUNICATION LEOs

I

r~*

I

I

II

I

256K

X

8

...

MDD5001

D~I

FLASH EPROM

I

....

ASIC

+-

AWl

g~~ROLI

J

BACKUP BATTERY

I

I

....1

BT1

."CPU RESET

I

DTE CMOS

~

J3

~

E_CLK

128K

X

8

I

A

I

R5-232

I

68HC11A1

I

DTE INTER

I

D'

RAM

I

J4

I

i

DRIVER

t

." OSP RESET

I

I

....

H

I

SERIAUPARA

';

S89600

DSP56156

F

UART1

'I

...

A~

INTERFACE

....

RADIO

INTE~

D

AND POWER

SSI

OISCIMOO

J2

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~~

.&

I

I

32

X

16

III""

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AI

I

RS.232

I

AUXILIARY

C~

SRAM

D

UART2

I

I

(DTE, GPS, SEN

DRIVER

J5

Y

SERIALADC

RSSI_

1

~

POWER INDICATOR

~'1

RESET

5 V REGULATOR

L.

I' "

"

LOGIC BOARD

Figure 1. Functional Block Diagram

68P(

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