405EX Datasheet, PDF (38/67 Pages) Applied Micro Circuits Corporation – PowerPC 405EX Embedded Processor

PPC405EX – PowerPC 405EX Embedded Processor
Revision 1.09 - August 21, 2007
Preliminary Data Sheet
Signal Functional Descriptions
The following table provides a description of the I/O signals on the PPC405EX.
Table 6. Signal Functional Description (Sheet 1 of 7)
Notes:
1. Receiver input has hysteresis.
2. Must pull up. See “Pull-Up and Pull-Down Resistors” on page 37 for recommended termination values.
3. Must pull down. See “Pull-Up and Pull-Down Resistors” on page 37 for recommended termination values.
4. If not used, must pull up.
5. If not used, must pull down.
6. Strapping input during reset; pull up or pull down as required.
Signal Name
Description
I/O
Type
Ethernet Interface
GMCCD,
GMC1RxClk
GMCCrS,
GMC1TxClk
GMCGTxClk,
GMC0TxClk
GMCMDClk
GMII: Collision detect.
RGMII 1: Receive clock.
GMII: Carrier sense.
RGMII 1: Transmit clock.
GMII: Transmit clock for GMII 1000Mbps.
RGMII 0: Transmit clock.
Management data clock.
I
3.3V tolerant
2.5V CMOS
I/O
3.3V tolerant
2.5V CMOS
O
3.3V tolerant
2.5V CMOS
O
3.3V tolerant
2.5V CMOS
GMCMDIO
Management data I/O.
I/O
3.3V tolerant
2.5V CMOS
GMCRefClk
GMCRxClk,
GMC0RxClk
GMII, RGMII: Reference clock for 1000Mbps.
GMII: Receive clock.
RGMII 0: Receive clock.
3.3V tolerant
I
2.5V CMOS
receiver
I
3.3V tolerant
2.5V CMOS
GMCRxD0:3,
GMC0RxD0:3
GMII: Receive data.
RGMII 0: Receive data.
I
3.3V tolerant
2.5V CMOS
GMCRxD4:7,
GMC1RxD0:3
GMII: Receive data.
RGMII 1: Receive data.
I
3.3V tolerant
2.5V CMOS
GMCRxDV,
GMC0RxCtl
GMII: Receive data valid.
RGMII 0: Receive control.
I
3.3V tolerant
2.5V CMOS
GMCRxEr,
GMC1RxCtl
GMCTxClk
GMCTxD0:3,
GMC0TxD0:3
GMII: Receive error.
RGMII 1: Receive control.
GMII: Transmit clock for 10/100Mbps.
GMII: Transmit data.
RGMII 0: Transmit data.
I
3.3V tolerant
2.5V CMOS
I
3.3V tolerant
2.5V CMOS
O
3.3V tolerant
2.5V CMOS
GMCTxD4:7,
GMC1TxD0:3
GMII: Transmit data.
RGMII 1: Transmit data.
O
3.3V tolerant
2.5V CMOS
GMCTxEn,
GMC0TxCtl
GMII: Transmit enable.
RGMII 0: Transmit control.
O
3.3V tolerant
2.5V CMOS
GMCTxEr,
GMC1TxCtl
GMII: Transmit error.
RGMII 1: Transmit control.
O
3.3V tolerant
2.5V CMOS
IIC Interface
IIC0SClk
IIC Serial Clock.
I/O 3.3V LVTTL
IIC0SData
IIC1SClk
IIC Serial Data.
IIC Serial Clock.
I/O 3.3V LVTTL
I/O 3.3V LVTTL
IIC1SData
IIC Serial Data.
I/O 3.3V LVTTL
Notes
1, 5
1
1, 5
1, 5
1
1
1
1
1, 5
1, 2
2
1
1
38
AMCC Proprietary