Rainbow Electronics DS2151Q - Manual (Page 8)

DS2151Q
022697 8/46
RCR1: RECEIVE CONTROL REGISTER 1 (Address=2B Hex)
(MSB) (LSB)
LCVCRF ARC OOF1 OOF2 SYNCC SYNCT SYNCE RESYNC
SYMBOL POSITION NAME AND DESCRIPTION
LCVCRF RCR1.7 Line Code Violation Count Register Function Select.
0=do not count excessive zeros
1=count excessive zeros
ARC RCR1.6 Auto Resync Criteria.
0=Resync on OOF or RCL event
1=Resync on OOF only
OOF1 RCR1.5 Out Of Frame Select 1.
0=2/4 frame bits in error
1=2/5 frame bits in error
OOF2 RCR1.4 Out Of Frame Select 2.
0=follow RCR1.5
1=2/6 frame bits in error
SYNCC RCR1.3 Sync Criteria.
In D4 Framing Mode.
0=search for Ft pattern, then search for Fs pattern
1=cross couple Ft and Fs pattern
In ESF Framing Mode
0=search for FPS pattern only
1=search for FPS and verify with CRC6
SYNCT RCR1.2 Sync Time.
0=qualify 10 bits
1=qualify 24 bits
SYNCE RCR1.1 Sync Enable.
0=auto resync enabled
1=auto resync disabled
RESYNC RCR1.0 Resync. When toggled from low to high, a resynchronization of the receive
side framer is initiated. Must be cleared and set again for a subsequent
resync.
RCR2: RECEIVE CONTROL REGISTER 2 (Address=2C Hex)
(MSB) (LSB)
RCS RZBTSI RSDW RSM RSIO RD4YM FSBE MOSCRF
SYMBOL POSITION NAME AND DESCRIPTION
RCS RCR2.7 Receive Code Select.
0=idle code (7F Hex)
1=digital milliwatt code (1E/0B/0B/1E/9E/8B/8B/9E Hex)
RZBTSI RCR2.6 Receive Side ZBTSI Enable.
0=ZBTSI disabled
1=ZBTSI enabled