SAF82525 Infineon Technologies AG, SAF82525 Datasheet - Page 16

• Manufacturer Part Number: SAF82525
• Description: Data Communications ICs
• Manufacturer: Infineon Technologies AG

Figure 1
Block Diagram SAB 82525/SAB 82526
The HSCX SAB 82526 comprises one (channel B), the SAB 82525 two completely
independent full-duplex HDLC channels (channel A and channel B), supporting various layer-1
functions by means of internal oscillator, Baud Rate Generator (BRG), Digital Phase Locked
Loop (DPLL), and Time-Slot Assignment (TSA) circuits.
Furthermore, layer-2 functions are performed by an on-chip LAP (Link Access Procedure, e.g.
LAPB or LAPD) controller.
Semiconductor Group
D0-D7
RD/IC1
WR/IC0
CS
ALE/IMO
INT
RES
IM1
DRQTA
DRQRA
DACKA
DRQTB
DRQRB
DACKB
A0-A6
µP Bus
Interface
DMA
Interface
Transmit
FIFO
Receive
FIFO
SP-REG
16
LAP
Controller
Data
Link
Controller
BRG
TSA
Channel A
Channel B
Decoder
Collision
Detection
Clock
Controll
DPLL
ITB00946
SAB
SAB
SAF
SAF
RxDA
RTSA
CTSA/
CxDA
RxCLKA
AxCLKA
TxCLKA
TxCLKB
AxCLKB
RxCLKB
CTSB/
CxDB
RTSB
TxDB
RxDB
TxDA
82525
82526
82525
82526