Rainbow Electronics DS2152 - Manual (Page 66)

DS2152
031897 66/79
DS2152 TRANSMIT DATA FLOW Figure 15–11
KEY
= REGISTER
= DEVICE PIN
= SELECTOR
TSER/
TDATA
TC1 TO TC24
TCC1 TO TCC3
IBCC
TDR
1 0
PER–CHANNEL CODE
GENERATION
IN–BAND LOOP
CODE GENERATOR
TS1 to TS12
IDLE CODE/PER
CHANNEL LB
SIGNALING MUX
TIR1 to TIR3
TIDR
RSER
(note#1)
TIR FUNCITON SELECT (CCR4.0)
CCR3.1
1 0
ROBBED BIT SIGNALING ENABLE (TCR1.4)
TIR1 to TTR3
TTR1 to TTR3
GLOBAL BIT 7 STUFFING (TCR1.3)
BIT 7 ZERO SUPPRESSION ENABLE (TCR2.0)
FRAME MODE SELECT (CCR2.7)
D4 YELLOW ALARM SELECT (TCR2.1)
TRANSMIT YELLOW (TCR1.0)
BIT 7 STUFFING
D4 BIT 2 YELLOW
ALARM INSERTION
FPS OR FT BIT INSERTION FRAME MODE SELECT (CCR2.7)
0
1
0 1
F–BIT PASS THROUGH (TCR1.6) F–BIT MUX
CRC CALCULATION
CRC PASS THROUGH (TCR1.5) CRC MUX
FRAME MODE SELECT (CCR2.7)
TFDL
TLINK
FDL HDLC AND BOC CONTROLLER
HDLC/BOC ENABLE (TBOC.6)
FRAME MODE SELECT (CCR2.7)
D4 YELLOW ALARM SELECT (TCR2.1)
TRANSMIT YELLOW (TCR1.0)
D4 12TH Fs BIT
YELLOW ALARM GENERATOR
ESF YELLOW ALARM GENERATOR
(00FF HEX IN THE FDL)
ONE’S DENSITY MONITOR
AMI OR B8ZS CONVERTER/
BLUE ALARM GENERATOR
PULSE DENSITY ENFORCER ENABLE (CCR3.3)
FRAME MODE SELECT (CCR2.7)
TRANSMIT YELLOW (TCR1.0)
PULSE DENSITY VIOLATION (RIR2.0)
TRANSMIT BLUE (TCR1.1)
B8ZS ENABLE (CCR2.6)
TFDL SELECT (TCR1.2)
0
1
0
1
0 1
0 1
TO WAVESHAPING, FILTERS, AND
LINE DRIVERS
DS0 MONITOR
NOTE:
1. TCLK should be tied to RCLK and TSYNC should be tied to RFSYNC for data to be properly sourced from RSER.