Revision 1.31 – February 16, 2012
440EPx – PPC440EPx Embedded Processor
Data Sheet
Table 20. I/O Specifications—PCI, USB, UART, IIC, SPI, Ethernet, System and Debug Interfaces (Sheet 3 of 3)
Notes:
1. Ethernet interface meets timing requirements as defined by IEEE 802.3 standard.
2. SMIISync is a weak driver. Redrive SMIISync when driving more than one load.
3. TDO timing is referenced to the falling edge of TCK.
Input (ns)
Output (ns)
Output Current (mA)
Signal
Clock
Notes
Setup Time Hold Time
Valid Delay
(TOV max)
Hold Time
(TOH min)
I/O H
(minimum)
I/O L
(minimum)
(TIS min)
(TIH min)
System Interface
SysReset
Halt
n/a
n/a
n/a
n/a
6.8
8.7
6.8
6.6
6.8
async
async
async
async
async
async
async
SysErr
5.1
GPIO00:11
GPIO12:25
GPIO26:48
GPIO49:63
Trace Interface
TrcClk
19.1
5.1
14.6
5.1
5.1
5.1
5.1
5.1
6.8
6.8
6.8
6.8
TrcBS0:2
TrcES0:4
TrcTS0:6
TrcClk
TrcClk
TrcClk
82
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