ZLP12840 datasheet(38/58 Pages) ZILOG

Part #	ZLP12840

Description	Crimzon-TM Infrared Microcontrollers ZLP12840 OTP MCU with Learning Amplification

PDF	58 Pages

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Manufacturer	ZILOG [Zilog, Inc.]

Direct Link	http://www.zilog.com

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38 / 58 page

PS024406-0106

P R E L I M I N A R Y

Port 3 Register

ZLP12840 OTP MCU

Product Specification

This register is not reset after a stop-mode recovery.

[3]

Read:

Port 3, pin 3 InputWriting this bit has no effect.

If P3M[1]=0:

P33 is Low.

P33 is High.

If P3M[1]=1 or SMR4[4]=1:

SMR condition exists.

SMR condition does not exist.

[2]

Read:

Port 3, pin 2 InputWriting this bit has no effect.

If P3M[1]=0:

P32 input is Low.

P32 input is High.

If P3M[1]=1:

Comparator 2 output is Low.

Comparator 2 output is High.

[1]

Read:

Port 3, pin 1 InputWriting this bit has no effect.

If P3M[2:1]=00:

P31 input is Low.

P31 input is High.

If P3M[2:1]=01:

Comparator 1 output is Low.

Comparator 1 output is High.

If P3M[2:1]=10 or 11:

IR amplifier output is Low.

IR amplifier output is High.

[0]

Read:

Port 3, pin 0 InputWriting this bit has no effect.

If P3M[1]=00:

P30 input is Low.

P30 input is High.

If P3M[1]=1:

Reads as 1.

Bit

Position Value Description

Note:

ZLP12840 Datasheet(PDF) 38 Page - Zilog, Inc.

ZLP12840 Datasheet(HTML) 38 Page - Zilog, Inc.

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