Motorola ColdFire MCF5281 - Manual (Page 245)

Signal Descriptions
Freescale Semiconductor 14-5
Receive data valid ERXDV Asserted to indicate that the PHY has
valid nibbles present on the MII. I 14-24
Receive data 0 ERXD0 Ethernet input data transferred from
the PHY to the media access controller
(when ERXDV is asserted). I 14-24
Carrier receive sense ECRS Asserted to indicate that the transmit
or receive medium is not idle. I 14-24
Transmit data ETXD[3:1] Contain the serial output Ethernet
data. O 14-24
Transmit error ETXER Asserted (for one or more E_TXCLKs
while ETXEN is also asserted) to
cause the PHY to send one or more
illegal symbols. O 14-24
Receive data ERXD[3:1] Contain the Ethernet input data
transferred from the PHY to the media
access controller (when ERXDV is
asserted in MII mode). I 14-24
Receive error ERXER Indicates (when asserted with
ERXDV) that the PHY has detected an
error in the current frame. I 14-25
Queued Serial Peripheral Interface (QSPI) Signals
QSPI synchronous
serial data output QSPI_DOUT Provides serial data from the QSPI. O 14-25
QSPI synchronous
serial data input QSPI_DIN Provides serial data to the QSPI. I 14-25
QSPI serial clock QSPI_CLK Provides the serial clock from the
QSPI. O 14-25
QSPI chip selects QSPI_CS[3:0] Provide QSPI peripheral chip selects. O 14-25
FlexCAN Signals
FlexCAN transmit CANTX Controller area network transmit data. O 14-25
FlexCAN transmit CANRX Controller area network transmit data. I 14-25
I 2 C Signals
Serial clock SCL Clock signal for the I
2
C interface. I/O 14-26
Serial data SDA Data input/output for the I
2
C interface. I/O 14-26
UART Signals
Transmit serial
data output UTXD[2:0] Transmitter serial data outputs. O 14-26
Receive serial
data input URXD[2:0] Receiver serial data inputs. I 14-26
Table 14-1. MCF5282 Signal Description (continued)
Signal Name Abbreviation Function I/O Page
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3