13.2 Data Register (Port x6h)

Bit

Name

Read/

Write

Description

7–0

Data

Read/Write

Data to be read from or to be written to RAM and Register.

13.3 Configuration Register — Address 40h

Bit

Name

Read/

Write

Description

0

Start

Read/Write

A one enables startup of monitoring operations, a zero puts the part in standby mode.

Note: The outputs of Interrupt pins will not be cleared if the user writes a zero to this

location after an interrupt has occurred unlike “INT__Clear” bit.

1

SMI Enable

Read/Write

A one enables the SMI Interrupt output.

2

NMI/IRQ

Enable

Read/Write

A one enables the NMI/IRQ Interrupt output.

3

INT__Clear

Read/Write

A one disables the SMI and NMI/IRQ outputs without affecting the contents of Interrupt

Status Registers. The device will stop monitoring. It will resume upon clearing of this

bit.

4

RESET

Read/Write

Mask Register 2. This bit is cleared once the pulse has gone inactive.

5

NMI/IRQ

Select

Read/Write

A one selects NMI, and a zero selects IRQ.

6

Power Switch

Bypass

Read/Write

A one in this bit drives a zero on open drain Power Switch Bypass pin.

7

INITIALIZATION

Read/Write

A one restores power on default value to all registers except the Serial Bus Address

register. This bit clears itself since the power on default is zero.

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