440GX – Power PC 440GX Embedded Processor
70
AMCC
Revision 1.15 – August 30, 2007
Data Sheet
I/O Specifications—All Speeds
(Sheet 1 of 7)
Notes:
1. Ethernet interface meets timing requirements as defined by IEEE 802.3 standard.
2.
PCI-X timings are for asynchronous operation up to 133MHz. PCI-X input setup time requirement is 1.2ns for 133MHz and
1.7ns for 66MHz. PCI timings (in parentheses) are for asynchronous operation up to 66MHz. PCI output hold time
requirement is 1ns for 66MHz and 2ns for 33MHz.
3. The clock frequency for RMII operation is 50MHz ± 100ppm.
4. The clock frequency for SMII operation is 125MHz ± 100ppm.
5. These are DDR signals that can change on both the positive and negative clock transitions.
Signal
Input (ns)
Output (ns)
Output Current (mA)
Clock
Notes
Setup Time
(T
IS
min)
Hold Time
(T
IH
min)
Valid Delay
(T
OV
max)
Hold Time
(T
OH
min)
I/O H
(minimum)
I/O L
(minimum)
PCI-X Interface
PCIXAD00:63
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXC3:0[BE3:0]
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXParLow
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIParHigh
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXFrame
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXINT
na
na
dc
dc
0.5
1.5
PCIXClk
async
PCIXIRDY
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXTRDY
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXStop
Note 2 (3
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXDevSel
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXIDSel
Note 2 (3)
0.5 (0)
na
na
na
na
PCIXClk
2
PCIXPErr
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXSErr
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXClk
dc
dc
na
na
na
na
async
PCIXReset
na
na
na
na
na
na
PCIXClk
PCIXReq64
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXAck64
Note 2 (3)
0.5 (0)
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2
PCIXCap
Note 2 (3)
0.5 (0)
na
na
na
na
PCIXClk
2
PCIX133Cap
3.8
0.7
0.5
1.5
PCIXClk
2
PCIXM66En
Note 2 (3)
0.5 (0)
na
na
na
na
PCIXClk
2
PCIXReq0:5
Note 2 (3)
0.5 (0)
na
na
na
na
PCIXClk
2
PCIXGnt0:5
na)
na
3.8 (6)
0.7 (Note 2)
0.5
1.5
PCIXClk
2