PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 162

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Code Violation Counter (Read)
CVCL
CVCH
CV15…CV0…
Semiconductor Group
7
7
CV15
CV7
Code Violations
No function if NRZ code has been enabled.
If the HDB3 or the CMI code is selected, the 16-bit counter will be
incremented when violations of the HDB3 code are detected. The
error detection mode is determined by programming the bit
FMR0.EXTD.
If simple AMI coding is enabled (FMR0.RC0/1 = 10) all bipolar
violations are counted. The error counter will not roll over.
During alarm simulation, the counter is incremented every four bits
received up to its saturation.
Clearing and updating the counter is done according to bit
FMR1.ECM.
If this bit is reset the error counter is permanently updated in the
buffer. For correct read access of the error counter bit DEC.DCVC
has to be set. With the rising edge of this bit updating the buffer will
be stopped and the error counter will be reset. Bit DEC.DCVC will
automatically be reset with reading the error counter high byte.
If FMR1.ECM is set every second (interrupt ISR3.SEC) the error
counter will be latched and then automatically reset. The latched error
counter state should be read within the next second.
162
Operational Description E1
0
0
CV0
CV8
PEB 22554
(x52)
(x53)
09.98