Rainbow Electronics T48C862-R8 - Manual (Page 60)

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T48C862-R8
4590B–4BMCU–02/03
Figure 58. Manchester Demodulation
Timer 3 – Mode 11:
Biphase Demodulation In the Biphase demodulation mode, the timer operates like in Manchester demodulation
mode. The difference is that the bits are decoded via a toggle flip-flop. This flip-flop sam-
ples the edge in the middle of the bitframe and the compare register 1 match event
shifts the toggle flip-flop output into shift register (see also combined mode 9).
Figure 59. Biphase Demodulation
1 0 1 1 1 0 0 1 1 0
1 1
BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6
Synchronize Manchester demodulation mode Timer 3
mode
T3EX
SI
SR-DATA
T3I
CM31=SCI
1 0 0 1 1 0
0 1 1 1 1
0 1
BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6
Synchronize Biphase demodulation mode Timer 3
mode
T3EX
Q1=SI
CM31=SCI
SR-DATA
0 0 0 0
T3I
Reset
Counter 3
1 0 1 0 1 0