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HT95C40P Datasheet(PDF) 12 Page - Holtek Semiconductor Inc |
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HT95C40P Datasheet(HTML) 12 Page - Holtek Semiconductor Inc |
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12 / 51 page  HT95CXXX Rev. 1.50 12 May 26, 2005 All of the data memory areas can handle arithmetic, logic, increment, decrement and rotate operations di- rectly. Except for some dedicated bits, each bit in the data memory can be set and reset by ²SET [m].i² and ²CLR [m].i². They are also indirectly accessible through memory pointer registers (MP0 or MP1). The bank1~bank14 and bank27 are only indirectly accessi- ble through memory pointer 1 register (MP1). The LCD display memory is located at bank 1BH. They can be read and written to by the indirect addressing mode using memory pointer 1 (MP1). To turn the display On or Off, a ²1² or ²0² is written to the corresponding bit of the memory area. Special Register, Embedded Control Register, LCD Display Memory and General Purpose RAM BP (RAM Bank) Address Function Description Supported for HT95CXXX 400/P 300/P 200/P Special Function Register 00H 00H IAR0 Indirect addressing register 0 ÖÖÖ 00H 01H MP0 Memory pointer register 0 ÖÖÖ 00H 02H IAR1 Indirect addressing register 1 ÖÖÖ 00H 03H MP1 Memory pointer register 1 ÖÖÖ 00H 04H BP Bank Pointer register ÖÖÖ 00H 05H ACC Accumulator ÖÖÖ 00H 06H PCL Program counter lower-order byte register ÖÖÖ 00H 07H TBLP Table pointer ÖÖÖ 00H 08H TBLH Table higher-order byte register ÖÖÖ 00H 09H WDTS Watchdog Timer option setting register ÖÖÖ 00H 0AH STATUS Status register ÖÖÖ 00H 0BH INTC0 Interrupt control register 0 ÖÖÖ 00H 0CH TMR0H Timer/Event Counter 0 high-order byte register ÖÖÖ 00H 0DH TMR0L Timer/Event Counter 0 low-order byte register ÖÖÖ 00H 0EH TMR0C Timer/Event Counter 0 control register ÖÖÖ 00H 0FH TMR1H Timer/Event Counter 1 high-order byte register ÖÖÖ 00H 10H TMR1L Timer/Event Counter 1 low-order byte register ÖÖÖ 00H 11H TMR1C Timer/Event Counter 1 control register ÖÖÖ 00H 12H PA Port A data register ÖÖÖ 00H 13H PAC Port A control register ÖÖÖ 00H 14H PB Port B data register ÖÖÖ 00H 15H PBC Port B control register ÖÖÖ 00H 16H DIALERIO Dialer I/O register ÖÖÖ 00H 18H PD Port D data register ÖÖÖ 00H 19H PDC Port D control register ÖÖÖ 00H 1AH PE Port E data register ÖÖÖ 00H 1BH PEC Port E control register ÖÖÖ 00H 1EH INTC1 Interrupt control register 1 ÖÖÖ 00H 1FH TBHP Table high-order byte pointer Ö¾ ¾ |
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