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HT36A4 датащи(PDF) 16 Page - Holtek Semiconductor Inc |
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HT36A4 датащи(HTML) 16 Page - Holtek Semiconductor Inc |
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16 / 38 page ![]() HT36A4 Rev. 1.10 16 March 12, 2007 After a chip reset, these input/output lines remain at high levels or floating (mask option). Each bit of these in- put/output latches can be set or cleared by the SET [m].i or CLR [m].i (m=12H) instruction. Some instructions first input data and then follow the output operations. For example, the SET [m].i, CLR [m].i, CPL [m] and CPLA [m] instructions read the entire port states into the CPU, execute the defined operations (bit-operation), and then write the results back to the latches or the accumulator. Each line of port A has the capability to wake-up the de- vice. 8 Channel Wavetable Synthesizer Wavetable Function Memory Mapping Special Register for Wavetable Synthesizer RAM B7 B6 B5 B4 B3 B2 B1 B0 1DH DA15 DA14 DA13 DA12 DA11 DA10 DA9 DA8 1EH DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 1FH DAON SELW 20H VM FR CH2 CH1 CH0 21H BL3 BL2 BL1 BL0 FR11 FR10 FR9 FR8 22H FR7 FR6 FR5 FR4 FR3 FR2 FR1 FR0 23H ST10 ST9 ST8 24H ST7 ST6 ST5 ST4 ST3 ST2 ST1 ST0 25H WBS RE9 RE8 26H RE7 RE6 RE5 RE4 RE3 RE2 RE1 RE0 27H VR9 VR8 2AH VR7 VR6 VR5 VR4 VR3 VR2 VR1 VR0 Wavetable Function Register Table Register Name Register Function B7 B6 B5 B4 B3 B2 B1 B0 1DH DAC high byte (no default value) DA15 DA14 DA13 DA12 DA11 DA10 DA9 DA8 1EH DAC low byte (no default value) DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 1FH DAON=1: DAC ON DAON=0: DAC OFF (default) SELW=1: DAC data from wavetable SELW=0: DAC data from MCU DAON SELW 20H Channel Number Selection CH2 CH1 CH0 20H Change Parameter Selection VM FR 21H Block Number Selection BL3 BL2 BL1 BL0 21H Frequency Number Selection FR11 FR10 FR9 FR8 22H FR7 FR6 FR5 FR4 FR3 FR2 FR1 FR0 23H Start Address Selection ST10 ST9 ST8 24H ST7 ST6 ST5 ST4 ST3 ST2 ST1 ST0 25H Waveform Format Selection WBS 25H Repeat Number Selection RE9 RE8 26H RE7 RE6 RE5 RE4 RE3 RE2 RE1 RE0 27H Volume Controller VR9 VR8 2AH VR7 VR6 VR5 VR4 VR3 VR2 VR1 VR0 |
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