S3C2500B Datasheet, PDF (363/623 Pages) Samsung semiconductor – 32-Bit RISC Microprocessor

S3C2500B
HDLC CONTROLLER
8.3 FUNCTION DESCRIPTIONS
Figure 8-1 shows the HDLC module's function blocks. These function blocks are described in detail in the
following sections.
Address _DMA
Controlller
Tx FIFO
(8 Words)
Flag/Abort/Idle
Generateor and
Transmitter
Word
HDLC Control
and Status
Registers
Control
Data ^{Bus Arbiter/}
Controller
Address
FCS Checker
Receive shift
Register
Rx FIFO
(8 words)
FCS Generator
Zero
Insertion
Encoder
Flag/Abort/Idle
Detection
autoecho
TxD
Zero
Delection
loop
dplloutR
dplloutT
brgout2
Decoder
RxD
DPLL
brgout1
TxC
RxC
BRG
MCLK2
(= 66 MHz)
Figure 8-1. HDLC Module Block Diagram
8-3