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S5D9 Folha de dados(PDF) 9 Page - Renesas Technology Corp |
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S5D9 Folha de dados(HTML) 9 Page - Renesas Technology Corp |
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9 / 115 page  R01DS0303EU0100 Rev.1.00 Page 9 of 115 Nov 3, 2016 S5D9 1. Overview Ethernet MAC with IEEE 1588 PTP (ETHERC) One-channel Ethernet MAC Controller (ETHERC) compliant with the Ethernet/IEEE802.3 Media Access Control (MAC) layer protocol. An ETHERC channel provides one channel of the MAC layer interface, connecting the MCU to the physical layer LSI (PHY-LSI) that allows transmission and reception of frames compliant with the Ethernet and IEEE802.3 standards. The ETHERC is connected to the Ethernet DMA Controller (EDMAC) so data can be transferred without using the CPU. To handle timing and synchronization between devices, an on-chip Precision Time Protocol (PTP) module for the Ethernet PTP Controller (EPTPC) applies the PTP defined in the IEEE 1588-2008 version 2.0 standard. The EPTPC is composed of: Synchronization Frame Processing unit (SYNFP0) A Statistical Time Correction Algorithm unit (STCA). Use the EPTPC in combination with the on-chip Ethernet MAC Controller (ETHERC) and the DMA Controller for the PTP Ethernet Controller (PTPEDMAC). See section 29, Ethernet MAC Controller (ETHERC) in User's Manual. SD/MMC Host Interface (SDHI) The SDHI and MultiMediaCard (MMC) interface module provides the functionality required to connect a variety of external memory cards to the MCU. The SDHI supports both 1- and 4-bit buses for connecting memory cards that support SD, SDHC, and SDXC formats. When developing host devices that are compliant with the SD Specifications, you must comply with the SD Host/Ancillary Product License Agreement (SD HALA). The MMC interface supports 1-, 4-, and 8-bit MMC buses that provide eMMC 4.51 (JEDEC Standard JESD 84-B451) device access. This interface also provides backward compatibility and supports high-speed SDR transfer modes. See section 43, SD/MMC Host Interface (SDHI) in User's Manual. Table 1.9 Analog Feature Functional description 12-Bit A/D Converter (ADC12) Up to two successive approximation 12-Bit A/D Converters are provided. In unit 0, up to 13 analog input channels are selectable. In unit 1, up to 11 analog input channels, the temperature sensor output, and an internal reference voltage are selectable for conversion. The A/D conversion accuracy is selectable from 12-, 10-, and 8-bit conversion, making it possible to optimize the tradeoff between speed and resolution in generating a digital value. See section 47, 12-Bit A/D Converter (ADC12) in User's Manual. 12-Bit D/A Converter (DAC12) The DAC12 D/A converts data and includes an output amplifier. See section 48, 12-Bit D/A Converter (DAC12) in User's Manual. Temperature sensor (TSN) The on-chip temperature sensor can determine and monitor the die temperature for reliable operation of the device. The sensor outputs a voltage directly proportional to the die temperature, and the relationship between the die temperature and the output voltage is linear. The output voltage is provided to the ADC12 for conversion and can also be used by the end application. See section 49, Temperature Sensor (TSN) in User's Manual. High-Speed Analog Comparator (ACMPHS) Analog comparators can be used to compare a test voltage with a reference voltage and to provide a digital output based on the conversion result. Both the test and reference voltages can be provided to the comparator from internal sources such as the DAC12 output and internal reference voltage, and an external source with or without an internal PGA. Such flexibility is useful in applications that require go/no-go comparisons to be performed between analog signals without necessarily requiring A/D conversion. See section 50, High- Speed Analog Comparator (ACMPHS) in User's Manual. Table 1.10 Human machine interfaces Feature Functional description Capacitive Touch Sensing Unit (CTSU) The CTSU measures the electrostatic capacitance of the touch sensor. Changes in the electrostatic capacitance are determined by the software, which enables the CTSU to detect whether a finger is in contact with the touch sensor. The electrode surface of the touch sensor is usually enclosed with an electrical conductor so that fingers do not come into direct contact with the electrodes. See section 51, Capacitive Touch Sensing Unit (CTSU) in User's Manual. Table 1.8 Communication interfaces (2 of 2) Feature Functional description |
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