mpc8313e Freescale Semiconductor, Inc, mpc8313e Datasheet - Page 28

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

Ethernet: Three-Speed Ethernet, MII Management
Figure 11
Figure 12
8.2.2
Table 28
28
At recommended operating conditions with NV
At recommended operating conditions with LV
Data to clock output skew (at transmitter)
Data to clock input skew (at receiver)
Clock cycle duration
REF_CLK clock rise V
REF_CLK clock fall time V
Note:
1. The symbols used for timing specifications herein follow the pattern of t
(reference)(state)
symbolizes RMII receive timing (RMR) with respect to the time data input signals (D) reach the valid state (V) relative to the
t
respect to the time data input signals (D) went invalid (X) relative to the t
hold time. Note that, in general, the clock reference symbol representation is based on three letters representing the clock
of a particular functional. For example, the subscript of t
times, the latter convention is used with the appropriate letter: R (rise) or F (fall).
RMX
clock reference (K) going to the high (H) state or setup time. Also, t
presents the RGMII and RTBI AC timing specifications.
provides the AC test load.
shows the RMII receive AC timing diagram.
RGMII and RTBI AC Timing
for inputs and t
Parameter/Condition
REF_CLK
Parameter/Condition
RXD[1:0]
CRS_DV
RX_ER
3
MPC8313E PowerQUICC
IL
(min) to V
Table 27. RMII Receive AC Timing Specifications (continued)
IH
Output
(max) to V
(first two letters of functional block)(reference)(state)(signal)(state)
Table 28. RGMII and RTBI AC Timing Specifications
IH
(max)
Figure 12. RMII Receive AC Timing Diagram
2
t
RMRDVKH
t
IL
RMXH
(min)
DDA
DD
of 3.3 V ± 10%.
/LV
t
DDB
RMX
Z
Figure 11. AC Test Load
™
0
of 2.5 V ± 5%.
II Pro Processor Hardware Specifications, Rev. 0
= 50 Ω
Valid Data
RMX
Specifications
Symbol
Symbol
t
t
SKRGT
SKRGT
represents the RMII (RM) reference (X) clock. For rise and fall
t
RGT
t
t
t
RMXR
RMXF
RMXF
1
1
RMRDXKL
(first three letters of functional block)(signal)(state)
RMX
R
t
RMRDXKH
L
t
clock reference (K) going to the low (L) state or
RMXR
–0.5
Min
1.0
7.2
= 50 Ω
Min
1.0
1.0
symbolizes RMII receive timing (RMR) with
for outputs. For example, t
NV
Typical
Typ
8.0
—
—
DD/
—
—
2
Freescale Semiconductor
Max
4.0
4.0
Max
0.5
2.8
8.8
RMRDVKH
Unit
ns
ns
Unit
ns
ns
ns