Rainbow Electronics DS2152 - Manual (Page 4)

DS2152
031897 4/79
DS2152 ENHANCED T1 SINGLE–CHIP TRANSCEIVER Figure 1–1
8
7
4 3 4
B8ZS Decoder
BPV Counter
Synchronizer
Alarm Detection
Loop Code Detector
CRC/Frame Error Count
One’s Density Monitor
Signaling Extraction
Channel Marking
Per–Channel Code Insert
AIS Generation
B8ZS Encode
One’s Density Enforcer
Yellow Alarm Generation
CRC Generation
F–Bit Insertion
Loop Code Generation
FDL Insertion
Clear Channel
Signaling Insertion
Per–Channel Loopback
Per–Channel Code Insert
Peak Detect
Filter
Line Drivers
LIUC
TPOSO
TCLKO
TNEGO
TNEGI
TCLKI
TPOSI
INT
D0 to D7/AD0 to AD7
MUX
A0 to A6
ALE(AS)/A7
RD(DS)
WR(R/W)
BTS
CS
TEST
RCL RCLK RLOS/LOTC 8MCLK RLINK RLCLK RCHBLK RCHCLK RSIGF RSIG RSER RSYNC RMSYNC RFSYNC RDA
T
A
TSYNC TSEO TDA
T
A
TSSYNC TSYSCLK TSER TSIG TCLK TCHBLK TCHCLK TLINK TLCLK RSYSCLK
8.192 MHz Clock
Synthesizer
Signaling
Buf
fer
Hardware Signaling Insertion
BOM Detection FDL
Extraction
16 Byte Buf
fer
Elastic
T
iming Control
Store
Sync Control
Elastic Store
T
iming Control FDL
Insertion
16–Byte Buf
fer
BOM Generation LOTC
mux
sync clock data
sync clock data
Receive Side Framer
T
ransmit Side Formatter
Payload Loopback
Framer Loopback
Remote Loopback
mux
mux
LIUC
Jitter Attenuation
(Can be placed in either tramsmit or receive path)
Local Loopback
Paralle
and
T
est Control Port
(routed to all blocks)
LIU AIS Generation
CSU Filters
Wave Shaping
Clock/Data
Recovery
Power Connections
24.7MHz
VCO/PLL
1.544 MHz
12.352 MHz
Clock/ Cystral Interface
RPOSI
RCLKI
RNEGI
RNEGO
RCLKO
RPOSO
8XCLK
XTALD
MCLK
R
VDD
DVDD TVDD R
VSS
DVSS TVSS
RRING
R
TIP
TRING
TTIP