MPC8358 FREESCALE [Freescale Semiconductor, Inc], MPC8358 Datasheet - Page 28

• Manufacturer Part Number: MPC8358
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

UCC Ethernet Controller: Three-Speed Ethernet, MII Management
8.2.2
This section describes the MII transmit and receive AC timing specifications.
8.2.2.1
Table 28
Figure 10
28
At recommended operating conditions with LV
TX_CLK clock period 10 Mbps
TX_CLK clock period 100 Mbps
TX_CLK duty cycle
TX_CLK to MII data TXD[3:0], TX_ER, TX_EN delay
TX_CLK data clock rise time, VIL(min) to VIH(max)
TX_CLK data clock fall time, VIH(max) to VIL(min)
Note:
1. The symbols used for timing specifications herein follow the pattern of t
MPC8358E PowerQUICC™ II Pro Processor Revision 2.1 PBGA Silicon Hardware Specifications, Rev. 1
(reference)(state)
t
(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
(TX) clock. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall).
MTKHDX
provides the MII transmit AC timing specifications.
shows the MII transmit AC timing diagram.
MII AC Timing Specifications
MII Transmit AC Timing Specifications
symbolizes MII transmit timing (MT) for the time t
TXD[3:0]
TX_CLK
TX_EN
TX_ER
Parameter/Condition
for inputs and t
Table 28. MII Transmit AC Timing Specifications
(first two letters of functional block)(reference)(state)(signal)(state)
Figure 10. MII Transmit AC Timing Diagram
t
MTXH
DD
/ OV
t
MTX
DD
of 3.3 V ± 10%.
t
MTXH
Symbol
t
t
t
MTKHDX
MTKHDV
MTKHDX
t
t
t
MTX
MTXF
t
t
MTXR
MTXF
MTX
MTX
/t
MTX
clock reference (K) going high (H) until data outputs
1
t
MTXR
(first two letters of functional block)(signal)(state)
Min
1.0
1.0
35
—
—
—
1
MTX
represents the MII(M) transmit
for outputs. For example,
Typ
400
40
—
—
—
5
Freescale Semiconductor
Max
4.0
4.0
65
15
—
—
—
Unit
ns
ns
ns
ns
ns
%