MC68HC05F8 Datasheet, PDF (77/126 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor(HCMOS) microcontroller unit

Freescale Semiconductor, Inc.
RESET
Decoder enabled ?
N
(DCE = 1)
Y
DECDAIN
N
low ?
Y
2 SYNC bit
N
received ?
Initialize decoder
Y
D0
Received with
N
correct format ?
Y
D1
Received with
N
correct format ?
8
Y
D7
Received with
N
correct format ?
Y
Detect correct
N
end pattern ?
Y
Y
DCF set ?
N
Load Decode register with
received data, set DCF and
generate INT if DIE set
Set Overrun flag
Generate INT if DIE set
Figure 8-4 Logic Flow of Decoder Hardware Operation
MC68HC05F8
MANCHESTER ENCODER/DECODER
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TPG
MOTOROLA
8-7