Rainbow Electronics DS2152 - Manual (Page 49)

DS2152
031897 49/79
BOC5 RBOC.5 BOC Bit 5. Last bit received of the 6–bit codeword.
BOC4 RBOC.4 BOC Bit 4.
BOC3 RBOC.3 BOC Bit 3.
BOC2 RBOC.2 BOC Bit 2.
BOC1 RBOC.1 BOC Bit 1.
BOC0 RBOC.0 BOC Bit 0. First bit received of the 6–bit codeword.
NOTE:
1. The LBD bit is latched and will be cleared when read.
2. The RBOC0 to RBOC5 bits display the last valid BOC code verified; these bits will be set to all ones on reset.
RFFR: RECEIVE FDL FIFO REGISTER (Address=05 Hex)
(MSB) (LSB)
FDL7 FDL6 FDL5 FDL4 FDL3 FDL2 FDL1 FDL0
SYMBOL POSITION NAME AND DESCRIPTION
FDL7 RFFR.7 FDL Data Bit 7. MSB of a HDLC packet data byte.
FDL6 RFFR.6 FDL Data Bit 6.
FDL5 RFFR.5 FDL Data Bit 5.
FDL4 RFFR.4 FDL Data Bit 4.
FDL3 RFFR.3 FDL Data Bit 3.
FDL2 RFFR.2 FDL Data Bit 2.
FDL1 RFFR.1 FDL Data Bit 1.
FDL0 RFFR.0 FDL Data Bit 0. LSB of a HDLC packet data byte.
TPRM: TRANSMIT PRM REGISTER (Address=06 Hex)
(MSB) (LSB)
– – – – – TEMPTY TFULL UDR
SYMBOL POSITION NAME AND DESCRIPTION
– TPRM.7 Not Assigned. Could be any value when read.
– TPRM.6 Not Assigned. Could be any value when read.
– TPRM.5 Not Assigned. Could be any value when read.
– TPRM.4 Not Assigned. Could be any value when read.
– TPRM.3 Not Assigned. Could be any value when read.
TEMPTY TPRM.2 Transmit FIFO Empty. A real–time bit that is set high when the FIFO is
empty.