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EM78811

8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT

ELAN Microelectronics 

EM78811

8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT

LCD_C2, LCD_C1

00

01

11

LCD Display Control

change duty

Disable (turn off LCD)

Blanking

LCD display enable

LCD_M duty

bias

0

1/16

1/4

1

1/8

1/4

:

:

:

:

• Bit3 (/WURING, RING Wake Up Enable): used to enable the wake-up function of /RINGTIME input pin.

(1/0=enable/disable)

• Bit4 (/WUP9L, PORT9 low nibble Wake Up Enable): used to enable the wake-up function of low nibble in

PORT9.(1/0=enable/disable)

• Bit5 (/WUP9H, PORT9 high nibble Wake Up Enable): used to enable the wake-up function of high nibble

in PORT9.(1/0=enable/disable)

• Bit6 (/WDTE,Watch Dog Timer Enable)

Control bit used to enable Watchdog timer.

(1/0=enable/disable)

The relation between Bit3 to Bit6 can see the diagram 9.

• Bit7 unused

/WURING

/RINGTIME

/WUP9L

PORT9(3:0)

/WDTEN 1/0=enable/disable

/WUP9H

PORT9(7:4)

/WDTE

fig.9 Wake up function and control signal

RF (Interrupt Status Register)

7

6

5

4

3

2

INT3 FSKDATA C8_2

C8_1

INT2

INT1

1

INT0

* “1” means interrupt request, “0” means non-interrupt

* Bit 0 (TCIF) TCC timer overflow interrupt flag. Set when TCC timer overflows.

* Bit 1 (INT0) external INT0 pin interrupt flag .

* Bit 2 (INT1) external INT1 pin interrupt flag .

* Bit 3 (INT2) external INT2 pin interrupt flag .

* Bit 4 (C8_1) internal 8 bit counter interrupt flag .

* Bit 5 (C8_2) internal 8 bit counter interrupt flag .

* Bit 6 (FSKDATA) FSK data interrupt flag.

* Bit 7 (INT3) external INT3 pin interrupt flag.

* High to low edge trigger , Refer to the Interrupt subsection.

* IOCF is the interrupt mask register. User can read and clear.

R10~R3F (General Purpose Register)

• R10~R3F (Banks 0~3) all are general purpose registers.

0

TCIF

* This specification are subject to be changed without notice.

10.12.1998 10

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