mpc8349ea Freescale Semiconductor, Inc, mpc8349ea Datasheet - Page 28

• Manufacturer Part Number: mpc8349ea
• Description: Mpc8349ea Powerquicc
• Manufacturer: Freescale Semiconductor, Inc

Ethernet: Three-Speed Ethernet, MII Management
8.2.3.2
Table 29
Figure 14
28
At recommended operating conditions with LV
PMA_RX_CLK clock period
PMA_RX_CLK skew
RX_CLK duty cycle
RXD[7:0], RX_DV, RX_ER (RCG[9:0]) setup time to rising
PMA_RX_CLK
RXD[7:0], RX_DV, RX_ER (RCG[9:0]) hold time to rising
PMA_RX_CLK
RX_CLK clock rise time V
RX_CLK clock fall time V
Notes:
1. The symbols for timing specifications follow the pattern of t
2. Setup and hold time of even numbered RCG are measured from the riding edge of PMA_RX_CLK1. Setup and hold times
and t
(TR) with respect to the time data input signals (D) reach the valid state (V) relative to the t
the high (H) state or setup time. Also, t
(D) went invalid (X) relative to the t
is based on three letters representing the clock of a particular function. For example, the subscript of t
(T) receive (RX) clock. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall). For
symbols representing skews, the subscript SK followed by the clock that is being skewed (TRX).
of odd-numbered RCG are measured from the riding edge of PMA_RX_CLK0.
(first two letters of functional block)(reference)(state)(signal)(state)
provides the TBI receive AC timing specifications.
shows the TBI receive AC timing diagram.
MPC8349EA PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications, Rev. 10
TBI Receive AC Timing Specifications
PMA_RX_CLK1
PMA_RX_CLK0
Parameter/Condition
RCG[9:0]
IH
IL
(max) to V
(min) to V
Table 29. TBI Receive AC Timing Specifications
TRX
IH
IL
Figure 14. TBI Receive AC Timing Diagram
(min)
(max)
DD
TRDXKH
t
clock reference (K) going to the high (H) state. In general, the clock reference symbol
t
SKTRX
TRXH
/OV
t
TRDVKH
DD
symbolizes TBI receive timing (TR) with respect to the time data input signals
of 3.3 V ± 10%.
t
TRX
t
TRXH
Even RCG
(first two letters of functional block)(signal)(state)(reference)(state)
for outputs. For example, t
t
Symbol
TRXH
t
t
TRDVKH
TRDXKH
t
SKTRX
t
t
t
TRXR
TRXF
t
TRX
TRXF
/t
TRX
2
1
2
Odd RCG
t
TRDXKH
t
Min
TRXR
7.5
2.5
1.5
0.7
0.7
40
t
TRDVKH
TRDVKH
t
TRDXKH
TRX
16.0
Typ
symbolizes TBI receive timing
—
—
—
—
—
—
clock reference (K) going to
Freescale Semiconductor
TRX
represents the TBI
Max
8.5
2.4
2.4
60
—
—
for inputs
Unit
ns
ns
ns
ns
ns
ns
%