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
Table
51. The MDC frequency should be equal to or less than 2.5 MHz to be compliant
i.MX53xD Applications Processors for Consumer Products, Rev. 1
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