ppc440grx Applied Micro Circuits Corporation (AMCC), ppc440grx Datasheet - Page 62

• Manufacturer Part Number: ppc440grx
• Description: Powerpc 440grx Embedded Processor
• Manufacturer: Applied Micro Circuits Corporation (AMCC)

440GRx – PPC440GRx Embedded Processor
Table 9. Signal Functional Description (Sheet 6 of 8)
Notes:
1. Receiver input has hysteresis
2. Must pull up (recommended value is 3kΩ to OV
3. Must pull down (recommended value is 1kΩ)
4. If not used, must pull up (recommended value is 3kΩ to OV
5. If not used, must pull down (recommended value is 1kΩ)
6. Strapping input during reset; pull-up or pull-down required
62
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
Signal Name
Address Latch Enable.
Clock output.
Data input.
Data output.
External interrupt requests 0 through 4.
External interrupt request 5.
External interrupt requests 6 through 9.
Chip Enable (multiplexed with the PerCS0:3 signals).
Command Latch Enable.
Latches operational commands into the NAND Flash.
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.
Data is latched on the rising edge.
Write Enable.
Data is latched on the rising edge.
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.
DD
(EOV
Description
DD
DD
for Ethernet)
(EOV
DD
for Ethernet)
Preliminary Data Sheet
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
I
I
I
I
I
I
Revision 1.11 – July 22, 2008
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
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
Type
Rcvr
AMCC Proprietary
Notes
1, 5
1, 4
1, 5
1
1
1
1
1
1
2
2
2
1
1
1
1