AT80C51RA2-3CSCV View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

AT80C51RA2-3CSCV

High Performance 8-bit Microcontrollers

Atmel Corporation 

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AT/TS8xC51Rx2

Bit

Number

Bit

Mnemonic

Description

7

-

Reserved

The value read from this bit is indeterminate. Do not set this bit.

6

-

Reserved

The value read from this bit is indeterminate. Do not set this bit.

5

-

Reserved

The value read from this bit is indeterminate. Do not set this bit.

4

-

Reserved

The value read from this bit is indeterminate. Do not set this bit.

3

-

Reserved

The value read from this bit is indeterminate. Do not set this bit.

2

-

Reserved

The value read from this bit is indeterminate. Do not set this bit.

Timer 2 Output Enable bit

1

T2OE

Clear to program P1.0/T2 as clock input or I/O port.

Set to program P1.0/T2 as clock output.

Down Counter Enable bit

0

DCEN

Clear to disable timer 2 as up/down counter.

Set to enable timer 2 as up/down counter.

Reset Value = XXXX XX00b

Not bit addressable

23

4188F–8051–01/08

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