MPC8360E/MPC8358E PowerQUICC II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 4
Freescale Semiconductor
37
UCC Ethernet Controller: Three-Speed Ethernet, MII Management
8.2.4.2
TBI Receive AC Timing Specifications
Table 34
provides the TBI receive AC timing specifications.
Figure 19
shows the TBI receive AC timing diagram.
Figure 19. TBI Receive AC Timing Diagram
Table 34. TBI Receive AC Timing Specifications
At recommended operating conditions with LV
DD
/OV
DD
of 3.3 V ± 10%.
Parameter/Condition
Symbol
1
Min
Typ
Max
Unit
Notes
PMA_RX_CLK clock period
t
TRX
—
16.0
—
ns
—
PMA_RX_CLK skew
t
SKTRX
7.5
—
8.5
ns
—
RX_CLK duty cycle
t
TRXH
/t
TRX
40
—
60
%
—
RCG[9:0] setup time to rising PMA_RX_CLK
t
TRDVKH
2.5
—
—
ns
2
RCG[9:0] hold time to rising PMA_RX_CLK
t
TRDXKH
1.0
—
—
ns
2
RX_CLK clock rise time, V
IL
(min) to V
IH
(max)
t
TRXR
0.7
—
2.4
ns
—
RX_CLK clock fall time, V
IH
(max) to V
IL
(min) t
TRXF
0.7
—
2.4
ns
—
Notes:
1. The symbols used for timing specifications follow the pattern of t
(first two letters of functional block)(signal)(state)(reference)(state)
for
inputs and t
(first two letters of functional block)(reference)(state)(signal)(state)
for outputs. For example, t
TRDVKH
symbolizes TBI receive
timing (TR) with respect to the time data input signals (D) reach the valid state (V) relative to the t
TRX
clock reference (K)
going to the high (H) state or setup time. Also, t
TRDXKH
symbolizes TBI receive timing (TR) with respect to the time data input
signals (D) went invalid (X) relative to the t
TRX
clock reference (K) going to the high (H) state. 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
TRX
represents the TBI (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 is skew (SK) followed by the clock that
is being skewed (TRX).
2. Setup and hold time of even numbered RCG are measured from riding edge of PMA_RX_CLK1. Setup and hold time of odd
numbered RCG are measured from riding edge of PMA_RX_CLK0.
PMA_RX_CLK1
RCG[9:0]
t
TRX
t
TRXH
t
TRXR
t
TRXF
t
TRDVKH
PMA_RX_CLK0
t
TRDXKH
t
TRDVKH
t
TRDXKH
t
SKTRX
t
TRXH
Even RCG
Odd RCG