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LAN8820 датащи(PDF) 49 Page - Microchip Technology |
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LAN8820 датащи(HTML) 49 Page - Microchip Technology |
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49 / 83 page ![]() 2009-2015 Microchip Technology Inc. DS00001871B-page 49 LAN8820/LAN8820I 4.2.19 CONTROL / STATUS INDICATIONS REGISTER Note 4-8 The default is determined by the RGMII_ID_MODE configuration strap. When RGMII_ID_MODE is latched high, bits 8 and 9 are “1”. When RGMII_ID_MODE is latched low, bits 8 and 9 are “0”. Refer to Section 3.3, "RGMII Interface," on page 18 and Section 3.8.1.1, "Configuration Straps," on page 24 for additional information. 4.2.20 INTERRUPT SOURCE FLAGS REGISTER Index (In Decimal): 27 Size: 16 bits Bits Description Type Default 15:10 RESERVED RO - 9 RGMII PHY TXC Delay Enable Configures the RGMII PHY TXC delay mode: 0 = RGMII PHY TXC delay mode disabled 1 = RGMII PHY TXC delay mode enabled R/W NASR Note 4-8 8 RGMII PHY RXC Delay Enable Configures the RGMII PHY RXC delay mode: 0 = RGMII PHY RXC delay mode disabled 1 = RGMII PHY RXC delay mode enabled R/W NASR Note 4-8 7:5 RESERVED RO - 4 XPOL Polarity state of the 10BASE-T: 0 = Normal polarity 1 = Reversed polarity RO 0b 3:0 RESERVED RO - Index (In Decimal): 29 Size: 16 bits Bits Description Type Default 15:11 RESERVED RO - 10 INT10 0 = Not source of interrupt 1 = Transmitter Elastic Buffer Overflow LH/WC 0b 9 INT9 0 = Not source of interrupt 1 = Transmitter Elastic Buffer Underflow LH/WC 0b 8 INT8 0 = Not source of interrupt 1 = Idle Error Count Overflow LH/WC 0b |
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