參數(shù)資料
型號： mPD784037
廠商： NEC Corp.
英文描述： 16/8-BIT SINGLE-CHIP MICROCONTROLLER
中文描述： 16/8-BIT單片機
文件頁數(shù)： 45/90頁
文件大?。?/td> 377K
代理商： MPD784037
μ
PD784031
45
9.5 Examples of Macro Service Applications
(1) Serial interface transmission
Transmission data storage buffer (memory)
INTST
TXS (SFR)
TxD
Data n
Data n - 1
Data 2
Data 1
Internal bus
Transmission
shift register
Transmission control
Each time a macro service request (INTST) is generated, the next transmission data is transferred from memory
to TXS. When data n (last byte) has been transferred to TXS (that is, once the transmission data storage buffer
becomes empty), a vectored interrupt request (INTST) is generated.
(2) Serial interface reception
Reception data storage buffer (memory)
INTSR
RXB (SFR)
RxD
Data n
Data n - 1
Data 2
Data 1
Internal bus
Reception buffer
Reception
shift register
Reception control
Each time a macro service request (INTSR) is generated, reception data is transferred from RXB to memory.
When data n (last byte) has been transferred to memory (that is, once the reception data storage buffer becomes
full), a vectored interrupt request (INTSR) is generated.
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