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參數(shù)資料
| 型號(hào)： | mPD784038 |
| 廠商： | NEC Corp. |
| 英文描述： | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| 中文描述： | 16/8-BIT單片機(jī) |
| 文件頁(yè)數(shù)： | 45/90頁(yè) |
| 文件大小： | 377K |
| 代理商： | MPD784038 |
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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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