PEB2085 SIEMENS [Siemens Semiconductor Group], PEB2085 Datasheet - Page 273

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

OPERATING SYSTEM and
Higher Level Protocol Software
Figure 112
LLC Architecture
The ISAC-S LLC supports following standard functions:
– Initialization of the SBC (layer 1) part.
– Activation of layer 1.
– Deactivation of layer 1.
HDLC framing with two byte address field is assumed.
Semiconductor Group
HDLC controller initialization.
The following HDLC controller message transfer modes are supported:
automode:
non-automode:
transparent mode 3: high byte address compare; called 'TRANSPARENT' mode in
transparent mode 2: no address compare; called 'EXTENDED TRANSPARENT'
Layer-1
Functions
SBC Part
FUNCTION CALLS
Driver Functions
. . .
HDLC Controller
related Functions
full two byte address compare, LAPD support.
full two byte address compare.
the LLC.
mode in the LLC.
ICC Part
ISAC -S TE
273
R
Error Messages
Status/
SBC Part
Evaluation of Interrupt Cause
Interrupt Server
Received
Frames
Low Level Controller
ICC Part
MMU Service
Requests
ITS02392