Datasheet

DS26514 4-Port T1/E1/J1 Transceiver
19-5856; Rev 4; 5/11 182 of 305
Register Name:
RIIR
Register Description:
Receive Interrupt Information Register
Register Address:
9Fh + (200h x (n - 1)) : where n = 1 to 4
Bit #
7
6
5
4
3
2
1
0
Name
—
RLS7
RLS6*
RLS5
RLS4
RLS3
RLS2**
RLS1
Default
0
0
0
0
0
0
0
0
* RLS6 is reserved for future use.
** Currently RLS2 does not create an interrupt, therefore this bit is not used in T1 mode.
The Receive Interrupt Information Register indicates which of the DS26514 status registers are generating an
interrupt. When an interrupt occurs, the host can read RIIR to quickly identify which of the receive status registers
is (are) causing the interrupt(s). The Receive Interrupt Information Register bits will clear once the appropriate
interrupt has been serviced and cleared, as long as no additional, unmasked interrupt condition is present in the
associated status register. Status bits that have been masked via the Receive Interrupt Mask (RIMx) registers will
also be masked from the RIIR register.
Register Name:
RIM1
Register Description:
Receive Interrupt Mask Register 1
Register Address:
0A0h + (200h x (n - 1)) : where n = 1 to 4
Bit #
7
6
5
4
3
2
1
0
Name
RRAIC
RAISC
RLOSC
RLOFC
RRAID
RAISD
RLOSD
RLOFD
Default
0
0
0
0
0
0
0
0
Bit 7: Receive Remote Alarm Indication Condition Clear (RRAIC)
0 = Interrupt masked.
1 = Interrupt enabled.
Bit 6: Receive Alarm Indication Signal Condition Clear (RAISC)
0 = Interrupt masked.
1 = Interrupt enabled.
Bit 5: Receive Loss of Signal Condition Clear (RLOSC)
0 = Interrupt masked.
1 = Interrupt enabled.
Bit 4: Receive Loss of Frame Condition Clear (RLOFC)
0 = Interrupt masked.
1 = Interrupt enabled.
Bit 3 : Receive Remote Alarm Indication Condition Detect (RRAID)
0 = Interrupt masked.
1 = Interrupt enabled.
Bit 2: Receive Alarm Indication Signal Condition Detect (RAISD)
0 = Interrupt masked.
1 = Interrupt enabled.
Bit 1: Receive Loss of Signal Condition Detect (RLOSD)
0 = Interrupt masked.
1 = Interrupt enabled.
Bit 0: Receive Loss of Frame Condition Detect (RLOFD)
0 = Interrupt masked.
1 = Interrupt enabled.