PPC440EP datasheet(56/84 Pages) AMCC

56 / 84 page

AMCC Proprietary

440EP – PPC440EP Embedded Processor

Revision 1.26 – April 25, 2007

Data Sheet

NAND Flash Interface

NFALE

Address Latch Enable.

Multiplex

NFCE0:3

Chip Enable (multiplexed with the PerCS0:3 signals).

Multiplex

NFCLE

Command Latch Enable.

Multiplex

NFRdyBusy

Ready/Busy.

Indicates status of device during program erase or page read.

This signal is wire-or connected from all NAND Flash devices.

Multiplex

NFREn

Read Enable strobe.

Multiplex

NFWEn

Write Enable strobe.

Multiplex

Serial Peripheral Interface

SCPClkOut

Clock output.

SCPClkOut, the serial port master clock out, is used to

synchronize all data movement both into and out of the device

through the serial data ports. Normally, data is shifted out on

the rising edge of the clock and shifted in on the negative

edge.

SCPClkOut is also used to shift data into and out of the slave

device. When the SPMODE register is reset, SCPClkOut is

forced to 0.

O3.3V LVTTL

SCPDI

Data In.

Data is received from the connected slave device and is

captured synchronously with SysClk.

I3.3V LVTTL

SCPDO

Data output.

Data is sent to the connected slave device synchronously with

SysClk.

O3.3V LVTTL

Interrupts Interface

IRQ0:4

External interrupt requests 0 through 4.

I/O

3.3V LVTTL

1, 5

IRQ5

External interrupt request 5.

3.3V tolerant

2.5V CMOS

IRQ6:9

External interrupt requests 6 through 9.

I/O

3.3V LVTTL

JTAG Interface

TCK

Test Clock.

3.3V LVTTL

w/pull-up

TDI

Test Data In.

3.3V LVTTL

w/pull-up

TDO

Test Data Out.

3.3V LVTTL

TMS

Test Mode Select.

3.3V LVTTL

w/pull-up

TRST

Test Reset.

3.3V LVTTL

w/pull-up

Table 6. Signal Functional Description (Sheet 7 of 9)

Notes:

1. Receiver input has hysteresis

2. Must pull up (recommended value is 3k

Ω to 3.3V)

3. Must pull down (recommended value is 1k

Ω)

4. If not used, must pull up (recommended value is 3k

Ω to 3.3V)

5. If not used, must pull down (recommended value is 1k

Ω)

6. Strapping input during reset; pull-up or pull-down required

Signal Name

Description

I/O

Type

Notes

PPC440EP Datasheet(PDF) 56 Page - Applied Micro Circuits Corporation

PPC440EP Datasheet(HTML) 56 Page - Applied Micro Circuits Corporation

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