DS2181A Maxim Integrated Products, DS2181A Datasheet - Page 21

• Manufacturer Part Number: DS2181A
• Description: IC TXRX CEPT PRIMARY RATE 40-DIP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of DS2181A

• Number Of Drivers/receivers: 1/1
• Protocol: CEPT
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

RIMR: RECEIVE INTERRUPT MASK REGISTER Figure 19
(MSB)
ALARM REPORTING AND INTERRUPT SERVICING
Alarm and error conditions are reported at outputs and the RSR. Use of the RSR and error count registers
simplifies system error monitoring. The RSR can be read in one of two ways: a burst read does not
disturb the RSR contents; a direct read will clear all bits set in the RSR unless the alarm condition which
set them is still active. Interrupts are enabled via the RIMR and are generated whenever an alarm or error
condition sets an RSR bit. The host controller must service the transceiver in order to clear an interrupt
condition. Clearing the appropriate RIMR bit will unconditionally clear an interrupt.
BVCR: BIPOLAR VIOLATION COUNT REGISTER Figure 20
(MSB)
SYMBOL
SYMBOL
MFSERR
BVD7
RDMA
FSERR
RRA
RUA1
BVD7
BVD0
RLOS
RSA1
RRA
ECS
RDMA
BVD6
POSITION
POSITION
BVCR.7
BVCR.0
RIMR.7
RIMR.6
RIMR.5
RIMR.4
RIMR.3
RIMR.2
RIMR.1
RIMR.0
BVD5
RSA1
NAME AND DESCRIPTION
Receive Remote Alarm
1 = Interrupt enabled
0 = Interrupt masked
Receive Distant Multiframe Alarm
1 = Interrupt enabled
0 = Interrupt masked
Receive Signaling All 1’s
1 = Interrupt enabled
0 = Interrupt masked
Receive Unframed All 1’s
1 = Interrupt enabled
0 = Interrupt masked
Frame Resync Criteria Met
1 = Interrupt enabled
0 = Interrupt masked
CAS Multiframe Resync Criteria Met
1 = Interrupt enabled
0 = Interrupt masked
Receive Loss of Sync
1 = Interrupt enabled
0 = Interrupt masked
Error Count Saturation
1 = Interrupt enabled
0 = Interrupt masked
NAME AND DESCRIPTION
MSB of bipolar violation count.
LSB of bipolar violation count.
RUA1
BVD4
21 of 32
FSERR
BVD3
MFSERR
BVD2
BVD1
RLOS
(LSB)
(LSB)
BVD0
DS2181A
ECS