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EM785840P

8-BIT MICRO-CONTROLLER

ELAN Microelectronics 

EM785840/5841/5842

8-bit Micro-controller

Bit 2 ~ Bit 3 ( T2P0 ~ T2P1 ): TMR2 clock prescale option bits.

T2P1

T2P0

Prescale

0

0

1:2(Default)

0

1

1:8

1

0

1:32

1

1

1:64

Bit 4 (T1EN): TMR1 enable bit

0 Î TMR1 is off (default value).

1 Î TMR1 is on.

Bit 5 (T2EN): TMR2 enable bit

0 Î TMR2 is off (default value).

1 Î TMR2 is on.

Bit 6 (PWM1E): PWM1 enable bit

0 Î PWM1 is off (default value), and its related pin carries out the PC1 function;

1 Î PWM1 is on, and its related pin will be set to output automatically.

Bit 7 (PWM2E): PWM2 enable bit

0 Î PWM2 is off (default value), and its related pin carries out the PC2 function.

1 Î PWM2 is on, and its related pin will be set to output automatically.

R6 (PORT6 I/O data, PWM control)

PAGE0 (PORT6 I/O data register)

7

6

5

4

3

2

1

0

X

X

P65

P64

P63

P62

P61

P60

-

-

R/W

R/W

R/W

R/W

R/W

R/W

Bit0 ~ Bit1 (P60 ~ P61): PORT60 and PORT61 can be used on IRC and ERIC mode. In these two mode, PORT60

and PORT61 will defined to general purpose IO. In crystal mode, PORT60 and PORT61 are defined to crystal

input (XIN and XOUT) pins and these two bits are undefined.

Bit2 ~ Bit6 (P62 ~ P65): 4-bit PORT6(2~5) I/O data register

User can use IOC register to define input or output each bit.

Bit6 ~ Bit7 : Unused register. These bits are not allowed to use.

PAGE1, PAGE2 : (undefined) not allowed to use

These two registers are not allowed to use.

PAGE3 (DT1L: the Least Significant Byte ( Bit 7 ~ Bit 0) of Duty Cycle of PWM1)

7

6

5

4

3

2

1

0

PWM1[7] PWM1[6] PWM1[5] PWM1[4] PWM1[3] PWM1[2] PWM1[1] PWM1[0]

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

A specified value keeps the output of PWM1 to stay at high until the value matches with TMR1.

__________________________________________________________________________________________________________________________________________________________________

* This specification is subject to change without notice.

10

2004/11/10 V1.2

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