SAB
SAB
SAF
SAF
Features (cont’d)
82525
82526
82525
82526
Protocol Support
Various types of protocol support depending on operating mode
– Auto-mode
– Non-auto mode
– Transparent mode
Handling of bit oriented functions in all modes
Support of LAPB/LAPD/SDLC/HDLC protocol in auto-mode (I- and S-frame handling)
Modulo 8 or modulo 128 operation
Programmable time-out and retry conditions
Programmable maximum packet size checking
µP
Interface
64 byte FIFO’s per channel and direction
Storage capacity of up to 17 short frames in receive direction
Efficient transfer of data blocks from/to system memory by DMA or interrupt request
8-bit demultiplexed or multiplexed bus interface
Intel or Motorola type
µP
interface
Semiconductor Group
7
SIEMENS [ Siemens Semiconductor Group ]
