Renesas RX71M, Руководство пользователя, Страница: 21 / 72

RSK+RX71M 5. User Circuitry
R20UT3217EG0100 Rev. 1.00 Page 21 of 71
Jan 23, 2015
5.9 Ethernet
When running any Ethernet software, a unique MAC address should be used. A unique Renesas allocated MAC
address is attached to the RSK+RX71M PCB as a sticker, and should be always be used with this device ensured to
ensure full compatibility when using other Renesas hardware on a common Ethernet connection.
An Ethernet controller IC is fitted to the RSK+ board, and is connected to the Ethernet MCU peripheral. The
RX71M MCU supports full duplex 10Mb/s and 100Mb/s transmission and reception. The connections for the
Ethernet controller are listed in
Table 5-8 and Table 5-9 below.
Ethernet signal Function
MCU
Port Pin
ET0MDIO Management data serial I/O P71 102
ET0MDC Management serial clock P72 101
ET0TXCLK Transmit clock PC4 82
ET0TXEN_RMII0TXDEN Transmit enable. P80 81
ET0TXER* Transmit error. PC3 83
ET0ETXD0_RMII0TXD0 Transmit data bit 0. P81 80
ET0ETXD1_RMII0TXD1 Transmit data bit 1. P82 79
ET0ETXD2 Transmit data bit 2. PC5 78
ET0ETXD3 Transmit data bit 3. PC6 77
ET0RXCLK Receive clock. P76 85
ET0RXDV Receive data valid. PC2 86
ET0RXER_RMII0RXER Receive data error. P77 84
ET0ERXD0_RMII0RXD0 Receive data bit 0. P75 87
ET0ERXD1_RMII0RXD1 Receive data bit 1. P74 88
ET0ERXD2 Receive data bit 2. PC1 89
ET0ERXD3 Receive data bit 3. PC0 91
ET0COL Collision detects. PC7 76
ET0LINKSTA Link status input. P34 27
ET0CRS_RMII0CRSDV Carrier sense P83 74
Table 5-8: Ethernet Connections (ET0)
* It is connected to a testpoint (T26).