-XO ¶
&21),'(17,$/
CS61574A CS61575
"ITS
3TATUS
2ESET HAS OCCURRED OR NO PROGRAM INPUT
4!/3 N EIFFECT
,,//0 IN EFFECT
4!/3,,//0 IN EFFECT
2,//0 IN EFFECT
$0- CHANGED STATE SINCE LAST CLEAR $0-
OCCURRED
,/3 CHANGED STATE SINCE LAST CLEAR ,/3
OCCURRED
,/3 AND $0- HAVE CHANGED STATE SINCE
LAST CLEAR ,/3 AND CLEAR $0-
Table 12. Coding for Serial Output bits 5,6,7
Power Supply
The device operates from a single +5 Volt supply.
Separate pins for transmit and receive supplies
provide internal isolation. These pins should be
connected externally near the device and decou-
pled to their respective grounds. TV+ must not
exceed RV+ by more than 0.3V.
Decoupling and filtering of the power supplies is
crucial for the proper operation of the analog cir-
cuits in both the transmit and receive paths. A 1.0
μF capacitor should be connected between TV+
and TGND, and a 0.1 μF capacitor should be con-
nected between RV+ and RGND. Use mylar or
ceramic capacitors and place them as closely as
possible to their respective power supply pins. A
68 μF tantalum capacitor should be added close
to the RV+/RGND supply. Wire-wrap bread-
boarding of the line interface is not recommended
because lead resistance and inductance serve to
defeat the function of the decoupling capacitors.
Schematic & Layout Review Service
#ONFIRM /PTIMUM
3CHEMATIC ,AYOUT
"EFORE "UILDING 9OUR "OARD
&OR /UR &REE 2EVIEW 3ERVICE
#ALL !PPLICATIONS %NGINEERING
Call: (512) 445-7222
DS154F3
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