CS61310 Cirrus Logic, Inc., CS61310 Datasheet - Page 17

• Manufacturer Part Number: CS61310
• Description: Long Haul T1 Line Interface Unit
• Manufacturer: Cirrus Logic, Inc.

Notes: 1. In Hardware Mode the Diagnostic Modes are selected by directly setting the pins on the device; in Host
DS440PP2
Loopback Modes
Local Loopback (LLOOP)
Remote Loopback (RLOOP)
In-band Network Loopback (NLOOP)
Internal Data Pattern Generation and Detection
Transmit All Ones (TAOS)
In-band Loop-up/down Code Generator
Error Detection
Bipolar Violation Detection (BPV)
Alarm Condition Monitoring
Receive Loss of Signal Monitoring (LOS)
Receive Alarm Indication Signal Monitoring (AIS)
Other Diagnostic Reports
Receive Line Attenuation Indicator (LATN)
Figure 12. Example of Summing of Waveforms
2. In Host Mode the interrupts can be masked by writing a “1” to the LOS bit; there is no masking in the
Mode, the appropriate register bits are written for Diagnostic Modes.
Hardware Mode.
Diagnostic Mode
Table 5. CS61310 Diagnostic Mode Availability
On the secondary of a 1:2 step-up transformer, the
mV/LSB is twice the values stated above. Note that
although the full scale digital input is 3F, it is rec-
ommended that full scale output voltage on the
transformer primary be limited to 2.4 Vpk. At high-
er output voltages, the driver may not drive the re-
quested output voltage.
The amplitude information for all phases is written
via the serial-port to Arbitrary Pulse Shape regis-
ters as described in an earlier section. Each phase
amplitude is written as an eight-bit byte, where the
first phase of the symbol is written first.
In serial-port host mode, the amplitude bytes are
written LSB first. The contents of the Arbitrary
Waveform register can be verified by reading the
Waveform Register.
Availability (Note 1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
H/W
Host
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Host Mode (Note 2)
Maskable
Yes
Yes
Yes
No
No
No
No
No
No
CS61310
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