Dell E2009W Руководство по эксплуатации - Страница 19

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8.1 U108 (Serial Flash)

Symbol

CE#

WP#

VSS

SCK

HOLD

VDD

I/O

The device is enabled by a high to low transition on CE#. CE#

must remain low for the duration of any command sequence.

I/O

To transfer commands, addresses, or data serially into the device.

I/O

The write protect (WP#) pin is used to enable/disable BPL bit in

the status register.

Connect ground

I/O

To transfer commands, addresses, or data serially into the device

input are latched on the rising edge of the serial clock.

I/O

To provide the timing of serial interface.

Commands, addresses, or input data are latched on the rising

edge of the clock input, while output data is shifted out on the

Falling edge of the clock input.

I/O

To temporarily stop serial communication with SPI flash

memory without resetting the device.

To provide power supply.

Description

Service Manual