ACS8520 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'ACS8520' PDF : 150 Pages View PDF
ACS8520 SETS
ADVANCED COMMUNICATIONS
Address (hex): 06
Register Name sts_interrupts
FINAL
DATASHEET
Description
(R/W) bits [15:8] of the interrupt Default Value 0011 1111
status register.
Bit 7
operating_
mode
Bit 6
Bit 5
main_ref_failed I14
Bit 4
I13
Bit 3
I12
Bit 2
I11
Bit 1
I10
Bit 0
I9
Bit No.
Description
Bit Value Value Description
7
operating_mode
Interrupt indicating that the operating mode has
changed. Latched until reset by software writing a 1
to this bit.
6
main_ref_failed
Interrupt indicating that input to the T0 DPLL has
failed. This interrupt will be raised after 2 missing
input cycles. This is much quicker than waiting for
the input to become invalid. This input is not
generated in Free-run or Holdover modes. Latched
until reset by software writing a 1 to this bit.
5
I14
Interrupt indicating that input I14 has become valid
(if it was invalid), or invalid (if it was valid). Latched
until reset by software writing a 1 to this bit.
4
I13
Interrupt indicating that input I13 has become valid
(if it was invalid), or invalid (if it was valid). Latched
until reset by software writing a 1 to this bit.
3
I12
Interrupt indicating that input I12 has become valid
(if it was invalid), or invalid (if it was valid). Latched
until reset by software writing a 1 to this bit.
2
I11
Interrupt indicating that input I11 has become valid
(if it was invalid), or invalid (if it was valid). Latched
until reset by software writing a 1 to this bit.
1
I10
Interrupt indicating that input I10 has become valid
(if it was invalid), or invalid (if it was valid). Latched
until reset by software writing a 1 to this bit.
0
I9
Interrupt indicating that input I9 has become valid
(if it was invalid), or invalid (if it was valid). Latched
until reset by software writing a 1 to this bit.
0
Operating mode has not changed.
1
Operating mode has changed.
Writing 1 resets the input to 0.
0
Input to the T0 DPLL is valid.
1
Input to the T0 DPLL has failed.
Writing 1 resets the input to 0.
0
Input I14 has not changed status (valid/invalid).
1
Input I14 has changed status (valid/invalid).
Writing 1 resets the input to 0.
0
Input I13 has not changed status (valid/invalid).
1
Input I13 has changed status (valid/invalid).
Writing 1 resets the input to 0.
0
Input I12 has not changed status (valid/invalid).
1
Input I12 has changed status (valid/invalid).
Writing 1 resets the input to 0.
0
Input I11 has not changed status (valid/invalid).
1
Input I11 has changed status (valid/invalid).
Writing 1 resets the input to 0.
0
Input I10 has not changed status (valid/invalid).
1
Input I10 has changed status (valid/invalid).
Writing 1 resets the input to 0.
0
Input I9 has not changed status (valid/invalid).
1
Input I9 has changed status (valid/invalid).
Writing 1 resets the input to 0.
Revision 3.02/October 2005 © Semtech Corp.
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