參數(shù)資料
型號: MC68HC705F8FU
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 1.8 MHz, MICROCONTROLLER, PQFP64
封裝: QFP-64
文件頁數(shù): 97/126頁
文件大?。?/td> 736K
代理商: MC68HC705F8FU
MOTOROLA
8-2
MC68HC05F8
MANCHESTER ENCODER/DECODER
8
8.2
General Operation
Figure 8-1 shows a block diagram of the Manchester encoder/decoder. Logic ow of the hardware
operation of the encoder and decoder are shown in Figure 8-2 and Figure 8-3 respectively.
8.2.1
Encoder
The Manchester Encoder is used to convert data from NRZ format to Manchester Code format;
and output onto the ENCOOUT pin.
Figure 8-1 Manchester Encoder/Decoder Block Diagram
MC68HC05F8 INTERNAL BUS
NCE
NIE
CIE
DCE
DIE
BR1
BR0
NCM
NCC
DCF
OVF
PRESCALER
DIVIDER
ENCODE
REGISTER
ENCODE
SHIFT REGISTER
DECODE
REGISTER
DECODE
SHIFT REGISTER
MANCHESTER ENCODER LOGIC
ENCODE CONTROL
DECODE CONTROL
MANCHESTER DECODER LOGIC
INTERRUPT
GENERATOR
MANCD STATUS REGISTER
MANCD CONTROL REGISTER
ENCOOUT
DECOIN
INTERNAL BUS CLOCK
INT
TPG
70
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