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Table 6-7 contains details of the signal descriptions and pin connections. All connections to the MCU are direct.
Net Name
TX_CLK
TX_EN
MII_TXD0
MII_TXD1
MII_TXD2
MII_TXD3
RX_DV
RX_ER
MII_RXD0
MII_RXD1
MII_RXD2
MII_RXD3
CRS
COL
MDC
MDIO
PB11
Function
Transmit/Receive Clock
Transmit Enable
Transmit Data, Bit 1
Transmit Data, Bit 2
Transmit Data, Bit 3
Transmit Data, Bit 4
Receive Data Valid
Receive Error
Receive Data, Bit 1
Receive Data, Bit 2
Receive Data, Bit 3
Receive Data, Bit 4
Carrier Sense
Collision Detection
Management Data Clock
Management data I/O
IEEE1588 signaling pin
MCU Pin
Number
97
98
99
100
101
102
94
93
89
90
91
92
87
84
81
79
55
Table 6-7: Ethernet module pins
The National Semiconductor 10/100 DP83640 Precision PHYTER ? Ethernet PHY supports the IEEE1588 Precision
Time Protocol (PTP) providing precision clock synchronization for real-time industrial connectivity. The RDK includes a
GPIO/Interrupt connection between the PHY and the SH7216 for PTP event processing, and a direct LED connection
for timing indications. The DP83640 captures a time stamp at the physical layer level with an accuracy of <10ns.
Figure 12-1 provides an overview of the DP83640.
6.11. 3 – Axis Accelerometer
The RDK board includes an Analog Devices ADXL335 3 – axis accelerometer for use in industrial control and gaming
applications. The X-Axis is connected to ADC channel AN0 (Port pin PF0, CPU pin 138). The Y-Axis is connected to
ADC channel AN1 (Port pin PF1, CPU pin 139). The Z-Axis is connected to ADC channel AN2 (Port pin PF2, CPU pin
140).
Figure?12‐2 provides an overview of the ADXL335.
?National Semiconductor Corporation, March 2010 National and PHYTER are registered trademarks of National Semiconductor. All other products are
trademarks of their respective holders. All rights reserved.
14
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