MPC8358E Freescale Semiconductor, MPC8358E Datasheet - Page 28
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MPC8358E
Manufacturer Part Number
MPC8358E
Description
(MPC8358E / MPC8360E) PowerQUICC II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications
Manufacturer
Freescale Semiconductor
Datasheet
1.MPC8358E.pdf
(112 pages)
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UCC Ethernet Controller: Three-Speed Ethernet, MII Management
8.2
The AC timing specifications for GMII, MII, TBI, RGMII, and RTBI are presented in this section.
8.2.1
This sections describe the GMII transmit and receive AC timing specifications.
8.2.1.1
Table 27
28
At recommended operating conditions with LV
GTX_CLK clock period
GTX_CLK duty cycle
GTX_CLK to GMII data TXD[7:0], TX_ER, TX_EN delay
GTX_CLK clock rise time, VIL(min) to VIH(max)
GTX_CLK clock fall time, VIH(max) to VIL(min)
GTX_CLK125 clock period
GTX_CLK125 reference clock duty cycle measured at LV
Notes:
1. The symbols used for timing specifications herein follow the pattern t
2. This symbol is used to represent the external GTX_CLK125 signal and does not follow the original symbol naming
3. In rev 2.0 silicon, due to errata, t
MPC8360E/MPC8358E PowerQUICC™ II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 2
(reference)(state)
symbolizes GMII transmit timing (GT) with respect to the t
time date input signals (D) reaching the valid state (V) to state or setup time. Also, t
timing (GT) with respect to the t
(D) going invalid (X) or 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
clock. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall).
convention.
selected. Please refer to QE_ENET18 in the device errata document.
provides the GMII transmit AC timing specifications.
GMII, MII, RMII, TBI, RGMII, and RTBI AC Timing Specifications
GMII Timing Specifications
GMII Transmit AC Timing Specifications
for inputs and t
Parameter/Condition
Table 27. GMII Transmit AC Timing Specifications
(first two letters of functional block)(reference)(state)(signal)(state)
GTX
GTKHDX
clock reference (K) going to the high state (H) relative to the time date input signals
DD
/ OV
minimum and t
DD
of 3.3 V ± 10%.
DD/2
GTKHDV
GTX
clock reference (K) going to the high state (H) relative to the
t
G125H
t
maximum are not supported when the GTX_CLK is
Symbol
GTXH/tGTX
t
t
GTKHDX
GTKHDV
t
t
t
t
GTXR
GTXF
G125
GTX
/t
(first two letters of functional block)(signal)(state)
G125
1
GTX
Min
0.5
40
45
—
—
—
—
—
represents the GMII(G) transmit (TX)
for outputs. For example, t
GTKHDX
Typ
8.0
8.0
—
—
—
—
—
symbolizes GMII transmit
Freescale Semiconductor
Max
5.0
1.0
1.0
60
55
—
—
—
Unit
ns
ns
ns
ns
ns
%
%
GTKHDV
Notes
3
2
2