Serial Interfaces
PHYTEC Messtechnik GmbH 2013 L-773e_2
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8 Serial Interfaces
The phyFLEX-i.MX 6 provides numerous serial interfaces some of
which are equipped with a transceiver to allow direct connection to
external devices:
1. Two High speed UARTs (TTL, derived from UART3 and
UART4 of the i.MX 6) with up to 4 MHz and one with hardware
flow control (RTS and CTS signals)
2. High speed USB OTG interface (extended directly from the
i.MX 6’s USB-HS OTG PHY (USB-PHY))
3. High speed USB HOST interface (extended directly from the
i.MX 6 USB HOST PHY (USB-PHY))
4. Auto-MDIX enabled 10/100/1000 Mbit Ethernet interface
5. Two I
2
C interface (derived from I
2
C port 2 and port 3 of the
i.MX 6)
6. Two Serial Peripheral Interface (SPI) interface (extended from
the third and fifth SPI module (eCSPI3 and eCSPI5) of the
i.MX 6)
7. I
2
S audio interface (originating from the fifth module of the
i.MX 6’s Synchronous Serial Interface (SSI5))
8. CAN 2.0B interface (extended directly from the i.MX 6
FlexCAN1 module)
9. SATA II, 3.0 Gbps (extended directly from the i.MX 6 SATA
PHY)
10. PCI Express Gen. 2.0 (extended directly from the i.MX 6 PCIe
PHY)
11. Media Local Bus (MLB) interface (connecting to the i.MX 6’s
MediaLB 150 block)
The following sections of this chapter detail each of these serial
interfaces and any applicable configuration jumpers.
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