PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 198

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

Semiconductor Group
Figure 84
4.11
Note 61: This chapter applies only in the µP-TE mode (see "Setting Operating
If DCL = 1.536 MHz the IOM
"Terminal Timing Mode", page 73). The last octet of an IOM
and the BAC bit. The S/G bit is always written and never read by the IEC-Q. Its value
depends on the last received EOC-command and on the status of the BAC bit. The
processing mode for the S/G bit is selected via bits SWST:BS, SWST:SGL and
ADF:CBAC (see "ADF-Register", page 219). The following table and state machine give
the detailed behavior of the complete S/G bit control function.
Modes", page 50).
S/G Bit and BAC Bit Operations
Sampling of Interrupts
0.5
ms
1 ms
125 s
®
-2 interface consists of three IOM
198
®
Operational Description
-2 frame includes the S/G
IOM -2 Frames
INT
C/I Code INT
INT
C/I Code INT
®
-2 channels (see
R
Data Sheet 01.99
PEB 2091
PEF 2091
ITD10294