DS21458LDK Maxim Integrated, DS21458LDK Datasheet - Page 86
DS21458LDK
Manufacturer Part Number
DS21458LDK
Description
Network Controller & Processor ICs
Manufacturer
Maxim Integrated
Datasheet
1.DS21458LDK.pdf
(269 pages)
- Current page: 86 of 269
- Download datasheet (2Mb)
15.1 Line Code Violation Count Register (LCVCR)
15.1.1 T1 Operation
T1 code violations are defined as bipolar violations (BPVs) or excessive zeros. If the B8ZS mode is set
for the receive side, then B8ZS codewords are not counted. This counter is always enabled; it is not
disabled during receive loss of synchronization (RLOS = 1) conditions.
Table 15-1. T1 Line Code Violation Counting Options
15.1.2 E1 Operation
Either bipolar violations or code violations can be counted. Bipolar violations are defined as consecutive
marks of the same polarity. In this mode, if the HDB3 mode is set for the receive side, then HDB3
codewords are not counted as BPVs. If ERCNT.3 is set, then the LVC counts code violations as defined
in ITU O.161. Code violations are defined as consecutive bipolar violations of the same polarity. In most
applications, the framer should be programmed to count BPVs when receiving AMI code and to count
CVs when receiving HDB3 code. This counter increments at all times and is not disabled by loss of sync
conditions. The counter saturates at 65,535 and will not rollover. The bit error rate on an E1 line would
have to be greater than 10** -2 before the VCR would saturate.
Table 15-2. E1 Line Code Violation Counting Options
E1 CODE VIOLATION SELECT
COUNT EXCESSIVE
(ERCNT.0)
ZEROS?
Yes
Yes
No
No
(ERCNT.3)
0
1
B8ZS ENABLED?
(T1RCR2.5)
Yes
Yes
No
No
WHAT IS COUNTED IN THE
86 of 269
LCVCRs
BPVs
BPVs + 16 Consecutive Zeros
BPVs (B8ZS Codewords Not Counted)
BPVs + 8 Consecutive Zeros
BPVs
WHAT IS COUNTED IN THE LCVCRs
CVs
DS21455/DS21458 Quad T1/E1/J1 Transceivers
Related parts for DS21458LDK
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC LIU QUAD T1/E1/J1 256-CSBGA
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
Network Controller & Processor ICs
Manufacturer:
Maxim Integrated
Datasheet:
Part Number:
Description:
power light source Luxeon Line
Manufacturer:
LUMILEDS [Lumileds Lighting Company]
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products