MCIMX53-START Freescale Semiconductor, MCIMX53-START Datasheet - Page 76

• Manufacturer Part Number: MCIMX53-START
• Description: KIT DEVELOPMENT I.MX53
• Manufacturer: Freescale Semiconductor
• Series: i.MX53r
• Type: MCUr

Specifications of MCIMX53-START

• Contents: Board
• Silicon Manufacturer: Freescale
• Core Architecture: ARM
• Core Sub-architecture: Cortex - A8
• Silicon Core Number: I.MX5
• Silicon Family Name: I.MX53
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: i.MX53
• Lead Free Status / Rohs Status: Supplier Unconfirmed

Electrical Characteristics
4.7.5.3
Table 50
input timings listed in
1
2
4.7.5.4
Table 51
timings listed in
with the IEEE 802.3 MII specification. However, the FEC can function correctly with a maximum MDC
frequency of 15 MHz.
76
M10 FEC_MDC falling edge to FEC_MDIO output invalid (minimum propagation delay)
M11 FEC_MDC falling edge to FEC_MDIO output valid (max propagation delay)
M12 FEC_MDIO (input) to FEC_MDC rising edge setup
.
.
Test conditions: 25pF on each output signal.
FEC_COL has the same timing in 10 Mbit 7-wire interface mode.
ID
Num
M9
2
FEC_TXD[3:0] (outputs)
FEC_TX_CLK (input)
lists MII serial management channel timings.
lists MII asynchronous inputs signal timing information.
FEC_CRS, FEC_COL
MII Async Inputs Signal Timing (FEC_CRS and FEC_COL)
MII Serial Management Channel Timing (FEC_MDIO and FEC_MDC)
FEC_TX_EN
FEC_TX_ER
FEC_CRS to FEC_COL minimum pulse width
Table
i.MX53xA Automotive and Infotainment Applications Processors, Rev. 1
Table
51. The MDC frequency should be equal to or less than 2.5 MHz to be compliant
Characteristic
50.
Figure 37. MII Transmit Signal Timing Diagram
Figure 38. MII Async Inputs Timing Diagram
Table 50. MII Async Inputs Signal Timing
Table 51. MII Transmit Signal Timing
Characteristics
1
M5
1
M6
M7
Figure 39
M9
Min
1.5
shows MII serial management channel
Figure 38
M8
Max
—
shows MII asynchronous
Min Max
18
—
0
FEC_TX_CLK period
Freescale Semiconductor
—
—
5
Unit
Unit
ns
ns
ns