三合微科股�½有限公司
S
AM
H
OP
Microelectronics Corp.
SM5172
3
12
RF ENCODER
DECODER WITH DATA OUTPUT PINS
Power ON
NO
Address
match?
YES
NO
Address
match?
YES
After Power On SM5172 is set in Address
search mode, if SM5172 finds 2 consecutive
Address that matches the Address setting of
SM5172.
SM5172 will enter Data Compare mod. It will
compare previously 2 received data, if they
match then SM5172 will set VT high and send
data O/ P.
NO
Data match?
YES
Active VT and
O/P data
YES
SM5172 re-enters Address search mode, after
2 consecutive Address that do not match
setting on SM5172 will disable VT and
momentary's data but keep Latch's data intact.
Address
match?
NO
YES
Address
match?
NO
Disable VT and Remove the
Momentary data.
But keep the Latch Type
data intact.
Page 8
OCT. 2001
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
