mpc8360e Freescale Semiconductor, Inc, mpc8360e Datasheet - Page 32

• Manufacturer Part Number: mpc8360e
• Description: Mpc8360e Powerquicc Ii Pro Family
• Manufacturer: Freescale Semiconductor, Inc

UCC Ethernet Controller: Three-Speed Ethernet, MII Management
Figure 13
8.2.3
This section describes the RMII transmit and receive AC timing specifications.
8.2.3.1
Table 31
32
At recommended operating conditions with LV
MPC8360E/MPC8358E PowerQUICC™ II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 2
REF_CLK clock
REF_CLK duty cycle
REF_CLK to RMII data TXD[1:0], TX_EN delay
REF_CLK data clock rise time, VIL(min) to VIH(max)
REF_CLK data clock fall time, VIH(max) to VIL(min)
Note:
1. The symbols used for timing specifications herein follow the pattern of t
(reference)(state)
t
outputs (D) are invalid (X). Note that, in general, the clock reference symbol representation is based on two to three
letters representing the clock of a particular functional. For example, the subscript of t
reference (X) clock. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall).
RMTKHDX
provides the RMII transmit AC timing specifications.
shows the MII receive AC timing diagram.
RMII AC Timing Specifications
RMII Transmit AC Timing Specifications
symbolizes RMII transmit timing (RMT) for the time t
RXD[3:0]
RX_CLK
Parameter/Condition
RX_DV
RX_ER
for inputs and t
Table 31. RMII Transmit AC Timing Specifications
(first two letters of functional block)(reference)(state)(signal)(state)
Figure 13. MII Receive AC Timing Diagram
t
t
MRXH
MRDVKH
DD
/ OV
t
MRX
DD
of 3.3 V ± 10%.
Valid Data
t
RMXH
t
t
Symbol
RMTKHDX
RMTKHDV
t
MRXF
t
t
t
RMXR
RMXF
RMX
/t
RMX
RMX
1
clock reference (K) going high (H) until data
t
MRDXKH
(first three letters of functional block)(signal)(state)
t
MRXR
Min
1.0
1.0
35
—
—
2
for outputs. For example,
RMX
Typ
20
—
—
—
—
represents the RMII(RM)
Freescale Semiconductor
Max
4.0
4.0
65
10
—
—
Unit
ns
ns
ns
ns
%