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Preliminary – Rainbow Electronics T89C51CC02 User Manual

Page 60

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60

Rev.A - May 17, 2001

Preliminary

T89C51CC02

Enter a 16-bit initial value in timer registers TH2/TL2. It can be the same as the reload value or different
depending on the application.

To start the timer, set TR2 run control bit in T2CON register.

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.

Figure 46. Clock-Out Mode

:2

EXEN2

EXF2

OVER-
FLOW

T2EX

TH2

(8-bit)

TL2

(8-bit)

TIMER 2

RCAP2

(8-bit)

RCAP2

(8-bit)

T2OE

T2

T2CON reg

T2CON reg

T2MOD reg

1

0

C/T2

T2CON reg

INTERRUPT

0

1

CT/2

T2CON.1

TR2

T2CON.2

FT2

CLOCK