SM8211M Datasheet, PDF (20/22 Pages) Nippon Precision Circuits Inc – POCSAG Decoder For Pagers

SM8211M
Lock
A
Yes
Frame = 0
No
BS1 = BS3 = LOW
(BS1 = BS2 = BS3 = LOW)
BS2 = LOW
Message receive flag = 0
Sync code timing
BS1 = BS3 = LOW
Frame timing < frame
BS1 = HIGH, BS3 = HIGH
setup times for frames
B
No
Address detected
Yes
Message receive flag = 1
ADD-DET = HIGH
address information transmit
Yes
Sync code timing
No
C
Frame timing
No
Message/Address
Yes
Address
Message
Message transmit
Frame timing = frame
Yes
Frame = 7
No
BS1 = BS3 = LOW
BS1 = HIGH, BS3 = HIGH
setup times for
sync code timing
(BS2 = HIGH)
E
Message
Message/Address
Address
No
Valid address
Yes
NIPPON PRECISION CIRCUITS—20