Rainbow Electronics DS2151Q - Manual (Page 38)

KEY
= REGISTER
= DEVICE PIN
= SELECTOR
TSER
TIDR
IDLE CODE MUX TIR1 TO TIR3
TS1 TO TS12
SIGNALING MUX
BIT 7 STUFFING
LOOP CODE GENERATION
D4 BIT 2 YELLOW
ALARM INSERTION
FPS/Ft MUX
CRC CALCULATION
CRC MUX
TFDL
TLINK
D4 12th Fs BIT
YELLOW ALARM GEN.
ESF YELLOW ALARM GEN.
(00FF HEX IN THE FDL)
ONE’S DENSITY MONITOR
AMI OR B8ZS CONVERTER/
BLUE ALARM GEN.
TO WAVESHAPING, FILTERS, AND
LINE DRIVERS
FDL/Fs
MUX
0 1
1 0
1 0
1 0
0
1
1
0
ROBBED BIT SIGNALING ENABLE (TCR1.4)
GLOBAL BIT 7 STUFFING (TCR1.3)
BIT 7 ZERO SUPPRESSION ENABLE (TCR2.0)
TRANSMIT LOOP UP CODE (CCR3.1)
TRANSMIT LOOP DOWN CODE (CCR3.2)
FRAME MODE SELECT (CCR2.7)
D4 YELLOW ALARM SELECT (TCR2.1)
TRANSMIT YELLOW (TCR1.0)
FPS PATTERN
Ft PATTERN
FRAME MODE SELECT (CCR2.7)
FRAMING PASS THROUGH (TCR1.6)
FRAME MODE SELECT (CCR2.7)
CRC PASS THROUGH (TCR1.5)
TLINK SELECT (TCR1.2)
FRAME MODE SELECT (CCR2.7)
D4 YELLOW ALARM SELECT (TCR2.1)
TRANSMIT YELLOW (TCR1.0)
FRAME MODE SELECT (CCR2.7)
TRANSMIT YELLOW (TCR1.0
PULSE DENSITY ENFORCER ENABLE (CCR3.3)
PULSE DENSITY VIOLATION (RIR2.0)
TRANSMIT BLUE (TCR1.1)
B8ZS ENABLE (CCR2.6)
TTR1 TO TTR3
TTR1 TO TTR3
DS2151Q
022697 38/46
DS2151Q TRANSMIT DATA FLOW Figure 13–9