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Rainbow Electronics DS1780 User Manual

Page 5

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DS1780

5 of 28

INTERNAL ADDRESS REGISTER MAP Table 2

REGISTER

DS1780 INTERNAL

HEX ADDRESS

POWER ON VALUE

NOTES

Configuration Register

40h

0000 1000

Interrupt (INT) Status

Register 1

41h

0000 0000

Interrupt (INT) Status

Register 2

42h

0000 0000

Interrupt (INT) Mask

Register 1

43h

0000 0000

Interrupt (INT) Mask

Register 2

44h

0000 0000

Chassis Intrusion Clear

Register

46h

0000 0000

Bit 7 of this register

clears Chassis Intrusion.

The other bits are

reserved.

VID Register

47h

0101 XXXX

The lower 4 bits reflect

the state of

VID0-VID3 pins.

Serial Address Register

48h

0010 11XY

X Reflects state of A1

and Y Reflects A0 state

VID4 Register

49h

1000 000X

Bit 0 = VID 4. The rest

are reserved.

Temperature

Configuration

Register

4Bh

0000 0001

Test Register

15h

0000 0000

Do not alter the

contents of the register.

Analog output

19h

1111 1111

Full on

Value RAM

20h-3Dh

Company ID

3Eh

1101 1010

Read only

Stepping

3Fh

0000 0001

Read only