PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 226

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

Semiconductor Group
6.2
4 categories of Monitor messages are supported by the IEC-Q:
– MON-0
– MON-1
– MON-2
– MON-8
6.2.1
Table 40
Addr: Address
d/m:
E:
Table 41
Code
Hex.
AA
XX
FF
00
50
51
52
53
54
MON-0
0 0 0 0
Data/Message
EOC Code
Monitor Channel Codes
MON-0 Codes
LBBD
Predefined MON-0 Commands and Indications
Format of MON-0-Commands
RCC
NCC
RTN
LB1
LB2
D
(EOC Programming)
(Overhead Bits)
(Maintenance Bits, S/Q-Channel)
(Local Functions)
1. Byte
NT
– 0 = NT
– 1 … 6 = Repeater
– 7 = Broadcast
– 0 = Data
– 1 = Message
– 00 … FF
Addr. | d/m
U
A A A | 1
MON-0-Functions
H
LBBD
RCC
NCC
RTN
LB1
LB2
= coded EOC command/indication
D
H
226
LT
UTC
ACK
U
H
E E E E
Hold
Close complete loop
Close loop B1
Close loop B2
Request corrupt CRC
Notify of corrupt CRC
Unable to comply
Return to normal
Acknowledge
EOC Code
2. Byte
Function
Data Sheet 01.99
Programming
E E E E
PEB 2091
PEF 2091