![](http://datasheet.mmic.net.cn/380000/-PD98405_datasheet_16745025/-PD98405_356.png)
CHAPTER 7 REGISTERS
356
(35) Output alarm mask register 1 (AMR1)
This register is used to select the alarm or error (CMD, PMD, LOS, OOF, LOF, LOP, OCD, LCD) to be
output from the PHYALM pin. Upon the detection of an alarm or error for which 1 has been set using this
register, the level of the signal output from the PHYALM pin remains high until the cause of the alarm or
error is cleared.
Register name
D7
D6
D5
D4
D3
D2
D1
D0
Address
Default
R/W
AMR1
CMD
0
LOS
OOF
LOF
LOP
OCD
LCD
25H
00H
R/W
Field
Function
Default value
Used to set whether notification of the setting of the ALM bit of command
register 1 is to be output from the PHYALM pin.
1
When the ALM bit is set, notification is posted by outputting a high-level
signal from the PHYALM pin.
0
Notification of the ALM bit being set is not posted.
Used to set whether notification of LOS detection is to be output from the
PHYALM pin.
1
Upon LOS detection, the level of the signal output from PHYALM goes
high.
0
Notification of LOS detection is not posted.
Used to set whether notification of OOF detection is to be output from the
PHYALM pin.
1
Upon OOF detection, the level of the signal output from PHYALM goes
high.
0
Notification of OOF detection is not posted.
Used to set whether notification of LOF detection is to be output from the
PHYALM pin.
1
Upon LOF detection, the level of the signal output from PHYALM goes
high.
0
Notification of LOF detection is not posted.
Used to set whether notification of LOP detection is to be output from the
PHYALM pin.
1
Upon LOP detection, the level of the signal output from PHYALM goes
high.
0
Notification of LOP detection is not posted.
Used to set whether notification of OCD detection is to be output from the
PHYALM pin.
1
Upon OCD detection, the level of the signal output from PHYALM goes
high.
0
Notification of OCD detection is not posted.
Used to set whether notification of LCD detection is to be output from the
PHYALM pin.
1
Upon LCD detection, the level of the signal output from PHYALM goes
high.
0
Notification of LCD detection is not posted.
D7: CMD
0
D5: LOS
0
D4: OOF
0
D3: LOF
0
D2: LOP
0
D1: OCD
0
D0: LCD
0
Remark
Bit D6 of this register can be written. Set this bit to 0.