ppc440ep Applied Micro Circuits Corporation (AMCC), ppc440ep Datasheet - Page 58

• Manufacturer Part Number: ppc440ep
• Description: Powerpc 440ep Embedded Processor
• Manufacturer: Applied Micro Circuits Corporation (AMCC)

Table 8. Signal Functional Description (Sheet 7 of 9)
Notes:
1. Receiver input has hysteresis
2. Must pull up (recommended value is 3kΩ to 3.3V)
3. Must pull down (recommended value is 1kΩ)
4. If not used, must pull up (recommended value is 3kΩ to 3.3V)
5. If not used, must pull down (recommended value is 1kΩ)
6. Strapping input during reset; pull-up or pull-down required
58
NAND Flash Interface
NFALE
NFCE0:3
NFCLE
NFRdyBusy
NFREn
NFWEn
Serial Peripheral Interface
SCPClkOut
SCPDI
SCPDO
Interrupts Interface
IRQ0:4
IRQ5
IRQ6:9
JTAG Interface
TCK
TDI
TDO
TMS
TRST
Revision 1.29 – May 07, 2008
Signal Name
Data Sheet
Address Latch Enable.
Chip Enable (multiplexed with the PerCS0:3 signals).
Command Latch Enable.
Ready/Busy.
Indicates status of device during program erase or page read. This
signal is wire-or connected from all NAND Flash devices.
Read Enable strobe.
Write Enable strobe.
Clock output.
Data In.
Data output.
External interrupt requests 0 through 4.
External interrupt request 5.
External interrupt requests 6 through 9.
Test Clock.
Test Data In.
Test Data Out.
Test Mode Select.
Test Reset.
Note: Must be asserted low during a power-on system reset in
order to reset the JTAG interface. If the JTAG interface is not reset,
the processor may not boot.
Description
440EP – PPC440EP Embedded Processor
I/O
I/O
I/O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
3.3V tolerant
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
2.5V CMOS
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
w/pull-up
w/pull-up
w/pull-up
w/pull-up
Multiplex
Multiplex
Multiplex
Multiplex
Multiplex
Multiplex
Type
AMCC Proprietary
Notes
2
2
2
1
1
1
1
1
5
4