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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MEC1322 датащи(PDF) 183 Page - Microchip Technology |
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MEC1322 датащи(HTML) 183 Page - Microchip Technology |
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183 / 456 page  2014 - 2015 Microchip Technology Inc. DS00001719D-page 183 MEC1322 14.11.1 RECEIVE BUFFER REGISTER 14.11.2 TRANSMIT BUFFER REGISTER 14.11.3 PROGRAMMABLE BAUD RATE GENERATOR LSB REGISTER 14.11.4 PROGRAMMABLE BAUD RATE GENERATOR MSB REGISTER Offset 0h (DLAB=0) Bits Description Type Default Reset Event 7:0 RECEIVED_DATA This register holds the received incoming data byte. Bit 0 is the least significant bit, which is transmitted and received first. Received data is double buffered; this uses an additional shift register to receive the serial data stream and convert it to a parallel 8 bit word which is transferred to the Receive Buffer register. The shift register is not accessible. R0h RESET Offset 0h (DLAB=0) Bits Description Type Default Reset Event 7:0 TRANSMIT_DATA This register contains the data byte to be transmitted. The transmit buffer is double buffered, utilizing an additional shift register (not accessible) to convert the 8 bit data word to a serial format. This shift register is loaded from the Transmit Buffer when the transmission of the previous byte is complete. W0h RESET Offset 00h (DLAB=1) Bits Description Type Default Reset Event 7:0 BAUD_RATE_DIVISOR_LSB See Section 14.9.1, "Programmable Baud Rate". R/W 0h RESET Offset 01h (DLAB=1) Bits Description Type Default Reset Event 7 BAUD_CLK_SEL 1=If CLK_SRC is ‘0’, the baud clock is derived from the 1.8432MHz_- Clk. If CLK_SRC is ‘1’, this bit has no effect 1=If CLK_SRC is ‘0’, the baud clock is derived from the 24MHz_Clk. If CLK_SRC is ‘1’, this bit has no effect R/W 0h RESET 6:0 BAUD_RATE_DIVISOR_MSB See Section 14.9.1, "Programmable Baud Rate". R/W 0h RESET |
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