PPC460EX-SUB800N AMCC, PPC460EX-SUB800N Datasheet - Page 87

• Manufacturer Part Number: PPC460EX-SUB800N
• Manufacturer: AMCC

Revision 1.19 – June 17, 2009
RGMII Timing
Figure 7. Setup and Hold Timing Waveforms for RGMII Signals
Table 21. RGMII I/O Timing
Test Conditions
AC specifications are characterized with VDD = +1.20V, OVDD = +3.15V,
E1OVDD = +2.4V, T
AMCC Proprietary
GMCnRxClk
GMCnRxD0:3
GMCnRxCtl
GMCnTxClk
GMCnTxD0:3
GMCnTxCtl
Notes:
Preliminary Data Sheet
1. Assumes GMCnRxClk is delayed either on the board or by the PHY to ensure adequate timing margin.
GMCnTxD/Ctl
GMCnRxD/Ctl
GMCnTxClk
GMCnRxClk
Signal
C
TskewR
(min)
= +85 °C and a 50pF test load as shown in the figure to the right.
1.0
1.0
n/a
n/a
–
v
Input (ns)
TskewR
(max)
2.8
2.8
n/a
n/a
–
–
Valid
Valid
TskewT
(min)
-0.5
-0.5
n/a
n/a
–
–
Output (ns)
TskewT
TskewT
(max)
n/a
n/a
0.5
0.5
–
–
460EX – PPC460EX Embedded Processor
Output Current (mA)
TskewR
(min)
I/O H
5.51
5.51
5.51
n/a
n/a
n/a
Valid
Valid
(min)
I/O L
7.23
7.23
7.23
n/a
n/a
n/a
GMCnRxClk
GMCnRxClk
GMCnTxClk
GMCnTxClk
Output
Clock
Pin
–
–
Notes
50pF
1
1
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