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HC705P6AGRS/D 数据表(PDF) 8 Page - NXP Semiconductors |
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HC705P6AGRS/D 数据表(HTML) 8 Page - NXP Semiconductors |
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8 / 134 page ![]() Table of Contents General Release Specification MC68HC705P6A — Rev. 1.0 Table of Contents Section 9. Analog Subsystem 9.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77 9.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77 9.3 Analog Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78 9.3.1 Ratiometric Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . .78 9.3.2 Reference Voltage (VREFH) . . . . . . . . . . . . . . . . . . . . . . . .78 9.3.3 Accuracy and Precision. . . . . . . . . . . . . . . . . . . . . . . . . . . .78 9.4 Conversion Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78 9.5 Digital Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 9.5.1 Conversion Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 9.5.2 Internal versus External Oscillator. . . . . . . . . . . . . . . . . . . .79 9.5.3 Multi-Channel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .79 9.6 A/D Status and Control Register (ADSC) . . . . . . . . . . . . . . . . .80 9.7 A/D Conversion Data Register (ADC). . . . . . . . . . . . . . . . . . . .82 9.8 A/D Subsystem Operation during Halt/Wait Modes . . . . . . . . .82 9.9 A/D Subsystem Operation during Stop Mode. . . . . . . . . . . . . .82 Section 10. EPROM 10.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83 10.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83 10.3 EPROM Erasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84 10.4 EPROM Programming Sequence. . . . . . . . . . . . . . . . . . . . . . .84 10.5 EPROM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84 10.6 EPROM Programming Register (EPROG) . . . . . . . . . . . . . . . .84 10.7 EPROM Bootloader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87 10.8 Programming from an External Memory Device. . . . . . . . . . . .87 Section 11. Mask Option Register (MOR) 11.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91 11.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91 11.3 Mask Option Register (MOR) $1EFF–$1F00 . . . . . . . . . . . . . .92 11.4 MOR Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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