MPC8379E-MDS-PB Freescale Semiconductor, MPC8379E-MDS-PB Datasheet - Page 25

• Manufacturer Part Number: MPC8379E-MDS-PB
• Description: BOARD PROCESSOR FOR MDS S
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC II™ PROr
• Type: MPUr

Specifications of MPC8379E-MDS-PB

• Contents: Board
• For Use With/related Products: MPC8379
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

At recommended operating conditions with LV
Figure 7
8.2.1.2
Table 27
Freescale Semiconductor
At recommended operating conditions with LV
TX_CLK data clock rise (20%–80%)
TX_CLK data clock fall (80%–20%)
1. The symbols used for timing specifications herein follow the pattern of t
Input low voltage
Input high voltage
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]
TX_CLK
TX_EN
TX_ER
Parameter
MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 4
Parameter
Table 26. MII Transmit AC Timing Specifications (continued)
Table 27. MII Receive AC Timing Specifications
MTX
Figure 7. MII Transmit AC Timing Diagram
t
MTXH
clock reference (K) going high (H) until data outputs (D) are invalid (X). Note that, in
DD
DD
of 3.3 V ± 5%.
of 3.3 V ± 5%.
MTX
t
MTX
represents the MII(M) transmit (TX) clock. For rise and fall times, the latter
t
MRXH
Symbol
t
t
MRDVKH
MRDXKH
t
t
V
MRX
MRX
V
IH
IL
/t
t
MTKHDX
MRX
Symbol
t
MTXF
1
t
t
MTXR
MTXF
for outputs. For example, t
1
(first two letters of functional block)(signal)(state) (reference)(state)
10.0
10.0
Min
Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
1.9
t
35
—
—
—
MTXR
Min
1.0
1.0
Typical
400
—
—
40
—
—
—
Typical
—
—
MTKHDX
Max
0.7
symbolizes MII
65
—
—
—
—
—
Max
4.0
4.0
Unit
Unit
ns
ns
ns
ns
%
V
V
ns
ns
25