T89C51RD2-3CUI-L View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

T89C51RD2-3CUI-L

0 to 40 MHz Flash Programmable 8-bit Microcontroller

Atmel Corporation 

T89C51RD2

It is possible to use timer 2 as a baud rate generator and a clock generator simultaneously. For this configuration,

the baud rates and clock frequencies are not independent since both functions use the values in the RCAP2H and

RCAP2L registers.

XTAL1

:2

TR2

T2CON reg

TL2 TH2

(8-bit) (8-bit)

OVEFLOW

T2

T2EX

Toggle

QD

EXEN2

T2CON reg

RCAP2L RCAP2H

(8-bit) (8-bit)

T2OE

T2MOD reg

EXF2

T2CON reg

TIMER 2

INTERRUPT

Figure 6. Clock-Out Mode C/T2 = 0

Rev. F - 15 February, 2001

19

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