IDT82V3255 Datasheet, PDF (61/127 Pages) Integrated Device Technology – WAN PLL

IDT82V3255
WAN PLL
INTERRUPTS2_ENABLE_CNFG - Interrupt Control 2
Address: 11H
Type: Read / Write
Default Value:00XXXXX0
7
6
5
4
3
2
1
0
T0_OPERATING T0_MAIN_REF_F
_MODE
AILED
-
-
-
-
-
IN3_CMOS
Bit
Name
Description
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the T0 DPLL operating mode
7
T0_OPERATING_MODE
switches, i.e., when the T0_OPERATING_MODE bit (b7, 0EH) is ‘1’.
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the T0 selected input clock
6
T0_MAIN_REF_FAILED
has failed; i.e., when the T0_MAIN_REF_FAILED bit (b6, 0EH) is ‘1’.
0: Disabled. (default)
1: Enabled.
5-1
-
Reserved.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the input clock validity
0
IN3_CMOS
changes (from ‘valid’ to ‘invalid’ or from ‘invalid’ to ‘valid’), i.e., when the corresponding IN3_CMOS bit (b0, 0EH) is ‘1’.
0: Disabled. (default)
1: Enabled.
INTERRUPTS3_ENABLE_CNFG - Interrupt Control 3
Address: 12H
Type: Read / Write
Default Value: 00X0XXXX
7
6
5
4
3
2
1
0
EX_SYNC_ALARM
T4_STS
-
INPUT_TO_T4
-
-
-
-
Bit
Name
Description
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when an external sync alarm has
7
EX_SYNC_ALARM
occurred, i.e., when the EX_SYNC_ALARM bit (b7, 0FH) is ‘1’.
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the T4 DPLL locking status
6
T4_STS
changes (from ‘locked’ to ‘unlocked’ or from ‘unlocked’ to ‘locked’), i.e., when the T4_STS bit (b6, 0FH) is ‘1’.
0: Disabled. (default)
1: Enabled.
5
-
Reserved.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when all the input clocks for T4 path
4
INPUT_TO_T4
change to be unqualified, i.e., when the INPUT_TO_T4 bit (b4, 0FH) is ‘1’.
0: Disabled. (default)
1: Enabled.
3-0
-
Reserved.
Programming Information
61
June 19, 2006