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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT46R0664 датащи(PDF) 20 Page - Holtek Semiconductor Inc |
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HT46R0664 датащи(HTML) 20 Page - Holtek Semiconductor Inc |
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20 / 92 page  Rev. 1.00 �0 ����st 1�� �011 Rev. 1.00 �1 ����st 1�� �011 HT46R0664 Enhanced A/D+LCD Type 8-Bit OTP MCU Display Memory The data to be displayed on the LCD display is stored in an area of fully accessible Data Memory. By writing to this area of RAM, the display output can be directly controlled by the application program. As this Memory exists in Bank 1, but have addresses which map into the General Purpose Data Memory, it is necessary to first ensure that the Bank Pointer is set to the value “01H” before accessing the Display Memory. The Display Memory can only be accessed indirectly using the Memory Pointer MP1 and the indirect addressing register IAR1. When the Bank Pointer is set to Bank 1 to access the Display Memory, if any addresses with a value less than “40H” are read, the Special Purpose Memory in Bank 0 will be accessed. Also, if the Bank Pointer is set to Bank 1, if any addresses higher than the last address in Bank 1 are read, then a value of “00H” will be returned. Special Purpose Data Memory This area of Data Memory is where registers, necessary for the correct operation of the microcontroller, are stored. Most of the registers are both readable and writeable but some are protected and are readable only, the details of which are located under the relevant Special Function Register section. Note that for locations that are unused, any read instruction to these addresses will return the value “00H”. ACSR ADCR ADRH ADRL PWM0 CTRL1 LCDO PWM1 LVRC CTRL0 PAWK PB PBC PBPU PC PCC PCPU ANCSR0 ANCSR1 WDTC LVDC PAPU PAC PA BP MFIC PD INTC1 TMR0C TMR1 TMR1C PFC PFPU TMR0 INTC0 STATUS CTRL4 TBLH TBLP PCL ACC MP1 IAR1 MP0 IAR0 00H 01H 02H 03H 04H 05H 06H 07H 08H 09H 0AH 0BH 0CH 0DH 0EH 0FH 10H 11H 12H 13H 14H 15H 16H 17H CTRL2 LCDC CTRL3 INTEG PF PEPU PEC PE PDPU PDC 26H 27H 28H 29H 2AH 2BH 2CH 2DH 2EH 2FH 30H 31H 32H 33H 34H 35H 36H 18H 19H 1AH 1BH 1CH 1DH 1EH 1FH 20H 21H 22H 23H 24H 25H 3FH Special Purpose Data Memory |
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