ACE34AC04

4K I

VER 1.1

6

(G)

Timeout Function

The ACE34AC04 supports the industry standard bus Timeout feature to help prevent potential

system bus hangups. The device resets its serial interface and will stop driving the bus (will let

SDA float high) if the SCL pin is held low for more than the minimum Timeout (tOUT) specification.

The ACE34AC04 will be ready to accept a new Start condition before the maximum tOUT has

elapsed. This feature does require a minimum SCL clock speed of 10kHz to avoid any timeout

issues.

Figure 3: Timeout

(H)

Software Reset

After an interruption in protocol, power loss, or system reset, any 2-wie part can be reset by following

these steps:

1.Create a Start condition.

2.Clock nine cycles.

3.Create another Start condition followed by Stop condition.

Figure 4: Software Reset