ACS8520 datasheet(70/150 Pages) SEMTECH

70 / 150 page

ADVANCED COMMUNICATIONS

FINAL

DATASHEET

Revision 3.01/October 2003 © Semtech Corp.

Page 70

www.semtech.com

ACS8520 SETS

Address (hex):

Input pairs (1 & 2)

Description

(RO except for test when R/W)

Reports any alarms active on

inputs.

Default Value

0110 0110

Bit 7Bit 6

Bit 5Bit 4

Bit 3Bit 2

Bit 1Bit 0

Address 10: Status of I2 Input

Address 11: Status of I4 Input

Address 12: Status of I6 Input

Address 13: Status of I8 Input

Address 14: Status of I10 Input

Address 15: Status of I12 Input

Address 16: Status of I14 Input

Address 10: Status of I1 Input

Address 11: Status of I3 Input

Address 12: Status of I5 Input

Address 13: Status of I7 Input

Address 14: Status of I9 Input

Address 15: Status of I11 Input

Address 16: Status of I13 Input

Bit No.

Description

Bit Value

Value Description

7 & 3

Out-of-band alarm (soft)

Soft out of band alarm bit for input. A “soft” alarm

will not invalidate an input.

No alarm.

Alarm armed. Alarm thresholds (range) set by

Reg. 49, or by Reg. 4A, Bits [7:4] if the input is

currently selected.

6 & 2

Out-of-band alarm (hard)

Hard out of band alarm bit for input. A “hard” alarm

will invalidate an input.

No alarm.

Alarm armed. Alarm thresholds set by Reg. 49 Bits

[3:0], or by Reg. 4A Bits [3:0] if the input is currently

selected.

5 & 1

No activity alarm

Alarm indication from the activity monitors.

No alarm.

Input has an active no activity alarm.

4 & 0

Phase lock alarm

If the DPLL can not indicate that it is phase locked

onto the current source within 100 seconds this

alarm will be raised.

No alarm.

Phase lock alarm.

Address (hex):

As Reg. 10, but for sts_reference_sources, Input pairs (3 & 4)

Address (hex):

As Reg. 10, but for sts_reference_sources, Input pairs (5 & 6)

Address (hex):

As Reg. 10, but for sts_reference_sources, Input pairs (7 & 8)

Address (hex):

As Reg. 10, but for sts_reference_sources, Input pairs (9 & 10)

Address (hex):

As Reg. 10, but for sts_reference_sources, Input pairs (11 & 12)

Address (hex):

As Reg. 10, but for sts_reference_sources, Input pairs (13 & 14)

ACS8520 Datasheet(PDF) 70 Page - Semtech Corporation

ACS8520 Datasheet(HTML) 70 Page - Semtech Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL