PEF24901HV22XP Lantiq, PEF24901HV22XP Datasheet - Page 48

• Manufacturer Part Number: PEF24901HV22XP
• Manufacturer: Lantiq

Specifications of PEF24901HV22XP

• Control Interface: HDLC
• Lead Free Status / Rohs Status: Compliant

Table 10
0 0 0,
0 – +
+ – 0
0 0 +,
– + 0
0 + +,
– + +,
– 0 +
+ 0 0,
+ – +,
+ + –,
+ 0 –
+ + +,
0 + 0,
0 + –
+ + 0,
3.5.5
The running digital sum monitor (RDSM) computes the running digital sum from the
received ternary symbols by adding the polarity of the received user data (+ 1, 0, –1). At
the end of each block, the running digital sum is supposed to reflect the number of the
next column in
A code violation has occurred if the running digital sum is less than one or more than four
at the end of a ternary block, or if the ternary block 0 0 0 (three user symbols with zero
polarity) is found in the received data.
If at the end of a ternary block no error was found, the running digital sum retains its
current value. If the counter value is greater than 4, it is set to 4 at the beginning of the
next ternary block, if its value is 0 or less, it is set to one. So after a code violation has
been detected, the RDSM synchronizes itself within a period depending on the received
data pattern. Note there are some transmission errors which do not cause a code
violation.
Data Sheet
Monitoring of Code Violations
4B3T Decoding Table
Table 9 "MMS 43 Coding Table" on Page
Ternary Block
+ 0 +,
– – 0
– 0 0
– – +
0 – –
– – –
+ – –
– + –
– 0 –
0 0 –
0 – 0
49
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
48.
Binary Block
Functional Description
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
PEF 24901
2002-09-30
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
DFE-T