EM78R911 Ver la hoja de datos (PDF) - ELAN Microelectronics

Número de pieza

componentes Descripción

Fabricante

EM78R911

8-bit micro-controller

ELAN Microelectronics 

EM78911

8-bit micro-controller

11. RE(LCD Driver,WDT Control)(read/write)

7

6

5

4

3

2

1

0

CWPWR /WDTE /WUP9H /WUP9L /WURING LCD_C2 LCD_C1 LCD_M

* Bit0 (LCD_M):LCD_M decides the methods, including duty, bias, and frame frequency.

* Bit1~Bit2 (LCD_C#):LCD_C# decides the LCD display enable or blanking. change the display duty must set

the "LCD_C2,LCD_C1" to "00".

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(Power control of Call Waiting circuit)

.(1/0=enable circuit /disable circuit) Please enable PLL before enable Call Waiting circuit.

/WURING

/RINGTIME

/WUP9L

PORT9(3:0)

/WDTEN 0/1=enable/disable

/WUP9H

PORT9(7:4)

/WDTE

fig.9 Wake up function and control signal

12. RF (Interrupt Status Register)

7

6

INT3

FSK/CW

5

4

321

0

C8_2 C8_1 INT2 INT1 INT0 TCIF

* "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 INT2pin interrupt flag .

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

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

* Bit 6 ( FSK/CW ) FSK data or Call waiting 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.

10

Share Link: