PEB2085 SIEMENS [Siemens Semiconductor Group], PEB2085 Datasheet - Page 112

• Manufacturer Part Number: PEB2085
• Description: ISDN SubscribernAccess Controller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Figure 58
Receive Data Flow
Note 1 Only if a 2-byte address field is defined (MDS0 = 1 in MODE register).
Note 2 Comparison with Group TEI (FF
Note 3 In the case of an extended, modulo 128 control field format (MCS = 1 in SAP2 register)
Note 4 In the case of extended control field, only the first byte is stored in the RHCR, the
Semiconductor Group
Auto Mode
(U and Frames)
Non-Auto
Mode
Transparent
Mode
Transparent
Mode
Transparent
Mode
-
-
1
2
3
(MDS0 = 1 in MODE register).
the control field is stored in the RHCR in compressed form (I frames).
second in the RFIFO.
-
Description of Symbols:
Flag
SAP1, SAP2
SAP1, SAP2
SAP1, SAP2
Address
FE, FC
FE, FC
FE, FC
(Note 1)
(Note
SAPR
High
Checked automatically by
Compared with Register or Fixed Value
Stored Info Register or RFIFO
1)
TEI1, TEI2
TEI1, TEI2
TEI1, TEI2
Address
(Note
(Note 2)
Low
FF
FF
FF
H
) is only made if a 2-byte address field is defined
2)
112
ISAC -S
Control
(Note 3)
(Note
(Note 4)
RFIFO
RFIFO
RHCR
RHCR
RHCR
R
4)
Information
RFIFO
RFIFO
RFIFO
Functional Description
RSTA
RSTA
RSTA
RSTA
RSTA
CRC
ITD02342
Flag