Как Работать С Внешним Озу?

[gibiri]

Как подать сигналы на CE, WE, OE при записи и при чтении?
Вроде по даташиту делаю но не получается.
Микросхема 62256.

[gibiri]

WE. When selected LOW, a WRITE is conducted. When selected HIGH, a READ is
conducted

CE. When LOW, selects the chip. When HIGH, deselects the chip


OE. Output Enable. Controls the direction of the I/O pins. When LOW, the I/O pins
behave as outputs. When deasserted HIGH, I/O pins are three-stated, and act as
input data pins