mk60dn512zvll10 Freescale Semiconductor, Inc, mk60dn512zvll10 Datasheet - Page 58

• Manufacturer Part Number: mk60dn512zvll10
• Description: Up To 100 Mhz Arm Cortex-m4 Core With Dsp
• Manufacturer: Freescale Semiconductor, Inc

Peripheral operating requirements and behaviors
6.8.1.2 RMII signal switching specifications
The following timing specs meet the requirements for RMII style interfaces for a range of
transceiver devices.
58
RMII1
RMII2
RMII3
RMII4
RMII7
RMII8
Num
—
EXTAL frequency (RMII input clock RMII_CLK)
RMII_CLK pulse width high
RMII_CLK pulse width low
RXD[1:0], CRS_DV, RXER to RMII_CLK setup
RMII_CLK to RXD[1:0], CRS_DV, RXER hold
RMII_CLK to TXD[1:0], TXEN invalid
RMII_CLK to TXD[1:0], TXEN valid
Description
TXCLK (input)
TXD[n:0]
TXEN
TXER
RXCLK (input)
RXD[n:0]
RXDV
RXER
Table 39. RMII signal switching specifications
K60 Sub-Family Data Sheet Data Sheet, Rev. 5, 5/2011.
Figure 22. MII transmit signal timing diagram
Figure 23. MII receive signal timing diagram
MII8
Preliminary
MII2
MII3
Valid data
Valid data
Valid data
MII6
Valid data
Valid data
Valid data
MII1
MII4
MII5
MII7
35%
35%
Min.
—
—
4
2
4
Freescale Semiconductor, Inc.
Max.
65%
65%
50
15
—
—
—
RMII_CLK
RMII_CLK
period
period
MHz
Unit
ns
ns
ns
ns