Rainbow Electronics DS2143Q - Manual (Page 3)

DS2143/DS2143Q
031397 3/40
DS2143 BLOCK DIAGRAM
HDB3 DECODER BPV COUNTER
SYNCHRONIZER
ALARM DETECTION
CRC4 ERROR COUNT
E–BIT
COUNT
SIGNALING EXTRACTION
AIS GENERA
TION
HDB3 ENCODE
CRC4 GENERA
TION
IDLE CODE INSER
TION
SIGNALING INSER
TION
Sa BIT
INSER
TION
E–BIT
INSER
TION
Si BIT
INSER
TION
F
AS WORD INSER
TION
TRANSMIT SIDE FORMATTER
LOCAL
LOOPBACK
TIMING CONTROL/
Sa EXTRACTION
ELASTIC
STORE
TIMING
CONTROL
Sa
INTERT
LOGIC
LINE INTERFACE
CONTROL PORT
PARALLEL CONTROL PORT (ROUTED TO ALL BLOCKS)
RECEIVE SIDE
FRAMER
RLOS
RPOS
RCLK
RNEG
TPOS
TNEG
LI_SDI
LI_SCLK
LI_CS
RLINK
RLCLK
RCHBLK
RCHCLK
RSER
SYSCLK
RSYNC
TCLK
TSER
TSYNC
TCHCLK
TCHBLK
TLINK
TLCLK
BTS CS WR(R/W) RD(DS) ALE(AS) AD0–AD7 INT1/INT2