5SHY4045L0004机器人备件
总线信号线负载
e•MMC总线每条线路的总电容CL是总线主电容CHOST、总线电容CBUS本身和连接到该线路的e•MMD的电容CDEVICE之和：CL=CHOST+CBUS+CDEVICE主机和总线电容之和应低于20pF。 总线信号线负载参数符号最小类型。最大单元备注CMD RCMD的上拉电阻4.7-100 kΩ，以防止总线浮动DAT0–7 RDAT的上拉阻抗10-100 kΩ，防止总线浮动内部上拉电阻DAT1–DAT7 Rint 10-150 kΩ，用于防止未连接的线路浮动总线信号线电容CL---30 pF单设备单设备电容CDEVICE--12 pF最大单设备电容信号线电感----16 nH fPP≤ 52 MHz 6 eMMC寄存器描述软件设计者应参考特定的实现来进行编程。本节介绍了eMMC中的寄存器以及MKEV008GCB-SC510中使用的值。下表是当前规范的寄存器列表。此处未描述详细功能；请参考最新的eMMC规范。6.1操作条件寄存器（OCR）寄存器32位操作条件寄存器存储设备的VDD电压分布和访问模式指示。此外，该寄存器包括状态信息位。如果设备加电程序已完成，则设置此状态位。OCR寄存器应由所有设备执行。MKEV008GCB-SC510-11-注*：如果e•MMC尚未完成通电程序，则该位设置为低。
支持的电压范围编码
6.2 SD卡标识寄存器（CID）设备标识（CID）寄存器为128位宽。它包含设备识别阶段（e•MMC协议）使用的设备识别信息。每个单独的闪存或I/O设备应具有唯一的标识号。每种类型的MMC设备应具有唯一的识别号。表75列出了这些标识符。CID寄存器的结构在本节中定义。名称字段宽度CID切片CID值制造商ID MID 8[127:120]FFh保留-6[119:114]0卡/BGA CBX 2[113:112]01 OEM/应用ID OID 8[111:104]FFh产品名称PNM 48[103:56]MK0008G产品版本PRV 8[55:48]FFh产品序列号PSN 32[47:16]序列号制造日期MDT 8[15:8]制造日期CRC7校验和CRC 7[7:1]0未使用，始终为“1”-1[0:0]1 6.3驱动器级寄存器（DSR）16位驱动器级寄存器可选择用于改善扩展操作条件下的总线性能。CSD寄存器携带有关DSR寄存器使用情况的信息。DSR寄存器的默认值为0x404。OCR位VCCQ电压窗口e•MMC[6:0]保留000 0000b[7]1.7–1.95 1b[14:8]2.0–2.6 000 0000b[23:15]2.7–3.6 1 1111 1111b[28:24]保留000 10000b[30:29]访问模式00b（字节模式）10b（扇区模式）[31]卡通电状态位（忙）*MKEV008GCB-SC510-12-6.4相对卡地址寄存器（RCA）可写16位相对设备地址（RCA主机在设备标识期间分配的地址。该地址用于设备识别程序后的寻址主机设备通信。RCA寄存器的默认值为0x0001。保留值0x0000以将所有设备设置为备用
Bus signal line load
The total capacitance CL of each line of the e • MMC bus is the sum of the bus main capacitance CHOST, the bus capacitance CBUS itself and the capacitance CDEVICE of the e • MMDs connected to the line: CL=CHOST+CBUS+CDEVICE The sum of the host and bus capacitance should be less than 20pF. • Minimum type of bus signal line load parameter symbol. The maximum unit remarks: the pull-up resistance of CMD RCMD is 4.7-100 k Ω, to prevent the bus from floating DAT0 – 7 RDAT's pull-up impedance is 10-100 k Ω, and to prevent the bus from floating DAT1 – DAT7 Rint 10-150 k Ω, Used to prevent unconnected lines from floating bus signal line capacitance CL ---- 30 pF single device single device capacitance CDEVICE -- 12 pF maximum single device capacitance signal line inductance ---- 16 nH fPP ≤ 52 MHz 6 eMMC register description Software designers should refer to specific implementations for programming. This section describes the registers in eMMC and the values used in MKEV008GCB-SC510. The following table is a list of registers for the current specification. Detailed functions are not described here; Please refer to the latest eMMC specification. 6.1 Operating condition register (OCR) register 32-bit operating condition register stores VDD voltage distribution and access mode indication of the device. In addition, the register includes status information bits. Set this status bit if the device power up procedure has completed. The OCR register shall be executed by all devices. MKEV008GCB-SC510-11 - Note *: If e • MMC has not completed the power on procedure, this bit is set to low.
Supported voltage range coding
6.2 SD card identification register (CID) device identification register (CID) is 128 bits wide. It contains the device identification information used in the device identification phase (e • MMC protocol). Each individual flash memory or I/O device shall have a unique identification number. Each type of MMC device shall have a unique identification number. Table 75 lists these identifiers. The structure of the CID register is defined in this section. Name Field Width CID Slice CID Value Manufacturer ID MID 8 [127:120] FFh Reserved - 6 [119:114] 0 Card/BGA CBX 2 [113:112] 01 OEM/Application ID OID 8 [111:104] FFh Product Name PNM 48 [103:56] MK0008G Product Version PRV 8 [55:48] FFh Product Serial Number PSN 32 [47:16] Serial Number Manufacturing Date MDT 8 [15:8] Manufacturing Date CRC7 Checksum CRC 7 [7:1] 0 Not used, Always "1" - 1 [0:0] 1 6.3 Driver level registers (DSR) 16 bit driver level registers can be selected to improve bus performance under extended operating conditions. The CSD register carries information about the use of the DSR register. The default value of the DSR register is 0x404. OCR bit VCCQ voltage window e • MMC [6:0] reserve 000 0000b [7] 1.7 – 1.95 1b [14:8] 2.0 – 2.6 000 0000b [23:15] 2.7 – 3.6 1 1111 1111b [28:24] reserve 000 10000b [30:29] access mode 00b (byte mode) 10b (sector mode) [31] card status bit (busy) * MKEV008GCB-SC510-12-6.4 relative card address register (RCA) writable 16 bit relative device address (The address assigned by the RCA host during device identification. This address is used for addressing host device communication after the device identifier. The default value of the RCA register is 0x0001. The value 0x0000 is reserved to set all devices as standby
