PPC405EX-NPAFFFTX AMCC [Applied Micro Circuits Corporation], PPC405EX-NPAFFFTX Datasheet - Page 42

• Manufacturer Part Number: PPC405EX-NPAFFFTX
• Description: PowerPC 405EX Embedded Processor
• Manufacturer: AMCC [Applied Micro Circuits Corporation]

PPC405EX – PowerPC 405EX Embedded Processor
Table 6. Signal Functional Description (Sheet 5 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.
42
NAND Flash Interface
NFALE
NFCE0
NFCE1:3
NFCLE
NFData00:15
NFRdyBusy
NFRE
NFWE
DDR1/2 SDRAM Interface
MemData00:31
MemAddr00:14
RAS
CAS
MemClkEn
MemClkOut0
MemClkOut0
MemFBD
MemFBR
MemODT0:1
DM0:4
DQS0:4
BA0:2
BankSel0:1
ECC0:7
WE
Signal Name
Address latch enable.
Chip select 0.
Chip selects 1:3.
Command latch enable.
Data Bus
Read/Busy. If low, indicates that Read/Erase command is in process.
If high, indicates that the command is complete.
Read enable.
Write enable.
Memory data.
Memory address.
Row address strobe.
Column address strobe.
Clock enable.
Differential DDR SDRAM clock output.
Feedback driver.
Feedback receiver. Connect externally to MemFBD.
On-die termination.
Write data byte lane mask. DM4 is the byte lane mask for the ECC
byte lane.
Byte lane strobe. DQS4 is the strobe for the ECC lane.
Bank address for up to eight banks.
Bank select for up to two SDRAM memory banks.
ECC check bit byte.
Write enable.
Description
Preliminary Data Sheet
Revision 1.09 - August 21, 2007
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
I
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
SSTL2 Dr/Rcv
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
2.5V (1.8V)
Type
AMCC Proprietary
Notes
1, 2