SM5021 Datasheet, PDF (3/8 Pages) Nippon Precision Circuits Inc – Crystal Oscillator Module ICs

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SAMHOP Microelectronics Corp.
SM5021
ENCODER
FUNCTION DESCRIPTION
A. Encoder Singal Output Format
Bit Format
SYSCK / 192
Logic 1 is
Logic 0 is
EMPTY
Frame Format
There are four frames, encoder generates during sending. Each frame contains four field:
a) Frame head / Three-bits
1 1 0 ( Metal option )
b) Custom code / Two-bits
C1 C2
c) Control word / Seven-bits
0000001~1000110
d) Synch field / Four-bits of empty
B. Transmission Code Table
Start Word Custom Code B1 B2 B3 B4 B5 B6 B7 Transmit
1 1 0 C1 C2 0 0 0 0 0 0 1
K1
1 1 0 C1 C2 0 0 0 0 0 1 0
K2
1 1 0 C1 C2 0 0 0 0 1 0 0
K3
1 1 0 C1 C2 0 0 0 1 0 0 0
K4
1 1 0 C1 C2 0 0 1 0 0 0 0
K5
1 1 0 C1 C2 0 1 0 0 0 0 0
K6
1 1 0 C1 C2 1 0 0 0 0 1 1
K7
1 1 0 C1 C2 1 0 0 0 1 1 0
K8
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V.2.0 Mar 8,2002