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HT85F2270 Datasheet(PDF) 211 Page - Holtek Semiconductor Inc |
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HT85F2270 Datasheet(HTML) 211 Page - Holtek Semiconductor Inc |
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211 / 226 page  Rev. 1.00 �11 of ��6 �a� 1�� �01� Standard 8051 8-Bit Flash MCU HT85F2260/HT85F2270/HT85F2280 UART1 Register Description There are several control registers associated with the UART1 function. The S1CON register controls the overall function of the UART1, while the SPPRE, S1RELL and S1RELH registers control the Baud rate. The actual data to be transmitted and received on the serial interface is managed through the S1BUF data register. UART1 Register List Register Name Bit 7 6 5 4 3 2 1 0 S1CON S� — S��1 REN1 TB81 RB81 TI1 RI1 S1RELL S1REL.7 S1REL.6 S1REL.� S1REL.4 S1REL.� S1REL.� S1REL.1 S1REL.0 S1RELH — — — — — — S1REL.9 S1REL.8 S1BUF D7 D6 D� D4 D� D� D1 D0 SPPRE — — — — S1PRE1 S1PRE0 S0PRE1 S0PRE0 S1BUF Register – UART1 Data register SFR Address: 9Ch Bit 7 6 5 4 3 2 1 0 Name D7 D6 D� D4 D� D� D1 D0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 0 0 0 0 0 0 0 0 Bit 7~0 UART1 data buffer |
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