mpc8313e Freescale Semiconductor, Inc, mpc8313e Datasheet - Page 25

• Manufacturer Part Number: mpc8313e
• Description: Mpc8313e Powerquicc Ii Pro Processor
• Manufacturer: Freescale Semiconductor, Inc

Figure 7
8.2.1.2
Table 25
Freescale Semiconductor
At recommended operating conditions with LV
At recommended operating conditions with LV
TX_CLK data clock rise V
TX_CLK data clock fall V
Note:
1. The symbols used for timing specifications herein follow the pattern of t
RX_CLK clock period 10 Mbps
RX_CLK clock period 100 Mbps
RX_CLK duty cycle
RXD[3:0], RX_DV, RX_ER setup time to RX_CLK
RXD[3:0], RX_DV, RX_ER hold time to RX_CLK
for inputs and t
transmit timing (MT) for the time t
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
convention is used with the appropriate letter: R (rise) or F (fall).
shows the MII transmit AC timing diagram.
provides the MII receive AC timing specifications.
MII Receive AC Timing Specifications
(first two letters of functional block)(reference)(state)(signal)(state)
TXD[3:0]
Parameter/Condition
TX_CLK
Parameter/Condition
TX_EN
TX_ER
MPC8313E PowerQUICC
IH
IL
(max) to V
Table 24. MII Transmit AC Timing Specifications (continued)
(min) to V
Table 25. MII Receive AC Timing Specifications
MTX
IH
IL
Figure 7. MII Transmit AC Timing Diagram
t
(min)
(max)
MTXH
DDA
clock reference (K) going high (H) until data outputs (D) are invalid (X). Note that, in
DDA
/
/
MTX
LV
LV
t
MTX
DDB
DDB
represents the MII(M) transmit (TX) clock. For rise and fall times, the latter
™
/NV
/NV
II Pro Processor Hardware Specifications, Rev. 0
DD
DD
of 3.3 V ± 10%.
of 3.3 V ± 10%.
t
t
Symbol
MTKHDX
Symbol
MRXH
t
t
t
MTXF
MRDVKH
MRDXKH
t
t
MTXR
t
t
MTXF
MRX
MRX
/t
MRX
for outputs. For example, t
(first two letters of functional block)(signal)(state) (reference)(state)
1
1
t
MTXR
Ethernet: Three-Speed Ethernet, MII Management
10.0
10.0
Min
Min
1.0
1.0
35
—
—
Typ
Typ
400
40
—
—
—
—
—
MTKHDX
symbolizes MII
Max
Max
4.0
4.0
—
—
65
—
—
Unit
Unit
ns
ns
ns
ns
ns
ns
%
25