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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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IMX8MPCEC датащи(PDF) 59 Page - NXP Semiconductors |
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IMX8MPCEC датащи(HTML) 59 Page - NXP Semiconductors |
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59 / 111 page  Electrical characteristics i.MX 8M Plus Applications Processor Datasheet for Consumer Products, Rev. 0, 03/2021 NXP Semiconductors 59 3.8.4.2 RMII mode timing In RMII mode, enet1.RMII_CLK is used as the REF_CLK, which is a 50 MHz ± 50 ppm continuous reference clock. ENET_TXC enet_qos.RMII_TXER enet_qos.RGMII_ TXC; RMII/RGMII ALT1/ALT0 O For RMII—ENET_TXC works as RMII.TX_ER in the ALT1 mode. For RGMII—ENET_TXC works as RGMII.TX_CLK in the ALT0 mode. ENET_RX_CTL RMII.RX_EN (CRS_DV); enet_qos.RGMII_RC_CTL RMII/RGMII ALT0 I — ENET_RXC RMII_RXER; enet_qos.RGMII_RXC RMII/RGMII ALT1/ALT0 I For RMII—ENET_RXC works as RMII.RX_ER in the ALT1 mode. For RGMII—ENET_RXC works as RGMII.RX_CLK in the ALT0 mode. ENET_RD0 enet_qos.RGMII_RD0 RMII/RGMII ALT0 I — ENET_RD1 enet_qos.RGMII_RD1 RMII/RGMII ALT0 I — ENET_RD2 enet_qos.RGMII_RD2 RGMII ALT0 I Only used for RGMII. ENET_RD3 enet_qos.RGMII_RD3 RGMII ALT0 I Only used for RGMII. I2C1_SCL enet_qos.MDC RMII/RGMII ALT1 O — I2C1_SDA enet_qos.MDIO RMII/RGMII ALT1 I/O — I2C2_SCL enet_qos.1588_EVENT1_IN; enet_qos.1588_EVENT1_AUX_IN RMII/RGMII ALT1/ALT4 I ALT1 is for enet_qos.1588_EVENT1_IN. ALT4 is for enet_qos.1588_EVENT1_AU X_IN. I2C2_SDA enet_qos.1588_EVENT1_OUT RMII/RGMII ALT1 O — SAI2_MCLK enet_qos.1588_EVENT3_IN; enet_qos.1588_EVENT3_AUX_IN RMII/RGMII ALT2/ALT4 I ALT2 is for enet_qos.1588_EVENT3_IN. ALT4 is for enet_qos.1588_EVENT3_AU X_IN. SAI2_RXD0 enet_qos.1588_EVENT2_OUT RMII/RGMII ALT2 O — SAI2_TXD0 enet_qos.1588_EVENT2_IN; enet_qos.1588EVENT2_AUX_IN RMII/RGMII ALT2/ALT4 I ALT2 is for enet_qos.1588_EVENT2_IN. ALT4 is for enet_qos.1588_EVENT2_AU X_IN. SAI2_TXFS enet_qos.1588_EVENT3_OUT RMII/RGMII ALT2 O — Table 47. ENET QOS signal mapping (continued) Pad name Description Mode Alt mode Direction Comments |
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