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5'$7$ LI 5&2'( LV ORZ
Driver Performance Monitor
7R DLG LQ HDUO\ GHWHF WLRQ DQ G HD V\ LV RODWLRQ RI
QRQIXQFWLRQLQJ OLQNV WKH +DU GZDUH DQG + RVW
0RGHV RI WK H &6 $ DUH DEOH WR P RQLWRU
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7KH GULYHU SHUIRUPDQFH PRQLWRU LQGLFDWRU LV Q RU
PDOO\ DW D ORZ ]HUR ORJLF OHYHO DQG JRHV WR KLJK
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0RGH '30 LV DYD LODEOH IURP ERW K WKH UHJL VWHU
DQG SLQ
7KH GULYHU SHUIRUPDQFH PRQLWRU FRQVLVWV RI DQ DF
WLYLW\ GHWHFWRU WKDW PRQLWRUV WKH WUDQVPLWWHG VLJQDO
ZKHQ 07,3 LV FRQQHFWHG WR 77,3 DQG 05,1* LV
FRQQHFWHG WR 7 5,1* '30 ZLO O JR KL JK LI WK H
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GULYHU SHUIRUPDQFH PRQLWRU FDQ EH PD[LPL]HG E\
KDYLQJ HDFK ,& PRQL WRU SHUIRUPDQFH RI D Q HLJK
ERULQJ GHY LFH UD WKHU WKD Q KD YLQJ LW P RQLWRU LWV
RZQ SHUIRUPDQFH
Line Code Encoder/Decoder
,Q ([WHQGHG +DUGZDUH 0RGH WKUHH OLQH FRGHV DUH
DYDLODEOH $0, % =6 DQG +'% 7 KH L QSXW WR
WKH HQFRGHU LV 7'$7$ 7KH RXWSXWV IURP WKH GH
FRGHU DUH 5' $7$ DQG %39 %LSRODU 9 LRODWLRQ
6WUREH 7KH HQFRGHU DQG GHFRGHU DUH VHOHFWHG XV
LQJ S LQV / (1 / (1 / (1 7&2'( D QG
5&2'( DV VKRZQ LQ 7DEOH
TCODE
(Transmit
Encoder
Selection)
RCODE
(Receiver
Decoder
Selection)
LOW
HIGH
LOW
HIGH
LEN 2/1/0
000
010-111
HDB3
B8ZS
Encoder Encoder
AMI
Encoder
HDB3
B8ZS
Decoder Decoder
AMI
Decoder
Table 6. Selection of Encoder/Decoder
Alarm Indication Signal
,Q ([WHQGHG +DUGZDUH 0RGH WKH UHFHLYHU VHWV WKH
RXWSXW S LQ $,6 KL JK ZKH Q OHV V WKDQ ]HURV DUH
GHWHFWHG RXW RI ELW SHULRGV $,6 UHWXUQV ORZ
ZKHQ RU PRUH ]H URV DUH GHW HFWHG RX W RI
ELWV
Parallel Chip Select
,Q ([WHQGHG +DUGZDUH 0RGH 3&6 FDQ EH XVHG WR
JDWH WKH GLJLWDO FRQWURO LQSXWV 7&2'( 5&2'(
/(1 / (1 / (1 5 /223 / /223 DQG
7$26 , QSXWV DU H DFFHSWHG RQ WKHV H SLQV RQO\
ZKHQ 3&6 LV ORZ &KDQJHV LQ LQSXWV ZLOO LPPHGL
DWHO\ FKDQJH WKH RSHUDWLQJ V WDWH RI WKH GHYLFH
7KHUHIRUH ZKHQ F\FOLQJ 3&6 WR XSGDWH WKH RSHU
DWLQJ V WDWH WKH GLJ LWDO FR QWURO LQS XWV V KRXOG E H
VWDEOH IRU WKH HQWLUH 3&6 ORZ SHULRG 7KH FRQWURO
LQSXWV DUH LJQRUHG ZKHQ 3&6 LV KLJK
Power On Reset / Reset
8SRQ SRZHUXS WKH &6$ LV KHOG LQ D VWDWLF
VWDWH X QWLO WK H V XSSO\ F URVVHV D WKUH VKROG RI DS
DS40F3
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