4.4.2 eTSEC2
eTSEC2 10/100/1000 BaseT operates in the RGMII mode, and is directly connected to a
Vitesse RGMII PHY (VSC8641), as shown in the figure below.
C29x
eTSEC2
RGMII
MDC, MDIO
VSC8641
GBE PHY
MDIO PHY
Address = 0
RJ-45 Port
Figure 4-5. eTSEC2
4.5 eSPI
The eSPI is a full-duplex, synchronous, character-oriented channel that supports a four-
wire interface (receive, transmit, clock, and slave select). The C29x processor has the
ability to boot from an SPI serial flash device, in addition to supporting other peripheral
devices conforming to the SPI standard. A Spansion SPI flash memory is supported on
the board.
4.6 RS-232
The C29x processor has two UART controllers. However, due to space limitations, the
C29x PCIe card supplies only one RS-232, which provides an RS-232 standard
interconnection between the board and an external host. The serial connection is typically
configured to run at 115.2 Kbps.
Each UART supports:
• Full-duplex operation
• Software-programmable baud generators:
• Divide the input clock by 1 to (216 - 1)
• Generate a 16x clock for the transmitter and receiver engines
• Clear-to-send (CTS) and ready-to-send (RTS) modem control functions
• Software-selectable serial interface data format that includes:
eSPI
C29x PCIe Card User Guide, Rev. 0, 10/2013
28
Freescale Semiconductor, Inc.
Содержание C29x
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