M52259EVB Freescale Semiconductor, M52259EVB Datasheet - Page 34

• Manufacturer Part Number: M52259EVB
• Description: BOARD EVAL FOR 52259 COLDFIRE V2
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of M52259EVB

• Contents: Board, Cables, Documentation, DVD, Flash Drive and Power Supply
• Processor To Be Evaluated: MCF52259
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet, USB
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V2
• Silicon Core Number: MCF52
• Silicon Family Name: MCF5225x
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• For Use With/related Products: MCF52259
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.11.1
The following timing specs meet the requirements for MII and 7-Wire style interfaces for a range of transceiver devices.
2.11.2
Freescale Semiconductor
1
In MII mode, n = 3
Num
1
E1
E2
E3
E4
—
In MII mode, n = 3
Num
E6
E5
E7
E8
—
Receive Signal Timing Specifications
Transmit Signal Timing Specifications
RXCLK frequency
RXD[n:0], RXDV, RXER to RXCLK setup
RXCLK to RXD[n:0], RXDV, RXER hold
RXCLK pulse width high
RXCLK pulse width low
TXCLK frequency
TXCLK to TXD[n:0], TXEN, TXER invalid
TXCLK to TXD[n:0], TXEN, TXER valid
TXCLK pulse width high
TXCLK pulse width low
TXCLK (Input)
RXCLK (Input)
TXD[n:0]
RXD[n:0]
TXEN,
TXER
Figure 8. MII Transmit Signal Timing Diagram
Figure 7. MII Receive Signal Timing Diagram
RXDV,
RXER
Characteristic
Characteristic
MCF52259 ColdFire Microcontroller, Rev. 4
Table 18. Transmit Signal Timing
Table 17. Receive Signal Timing
1
E6
1
1
1
E1
E4
E8
Valid Data
Valid Data
E3
E2
35%
35%
Min
E7
—
—
E5
5
MII Mode
35%
35%
Min
—
5
5
MII Mode
65%
65%
Max
25
25
—
65%
65%
Max
25
—
—
Electrical Characteristics
RXCLK period
RXCLK period
t
t
TXCLK
TXCLK
MHz
Unit
ns
ns
MHz
Unit
ns
ns
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