em78p811 ELAN Microelectronics Corp, em78p811 Datasheet - Page 15

• Manufacturer Part Number: em78p811
• Description: 8-bit Micro-controller
• Manufacturer: ELAN Microelectronics Corp

_________________________________________________________________________________________________________________________________________________________________
* This specification is subject to be changed without notice.
10. RD(CALLER ID RAM data)(read/write)
11. RE(LCD Driver,WDT Control)(read/write)
9. RC(CALLER ID address)(read/write)
12. RF (Interrupt Status Register)
* 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".
* 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
* Bit 0 ~ Bit 7 select CALLER ID RAM address up to 256.
* Bit 0 ~ Bit 8 are CALLER ID RAM data transfer register.
User can see IOCA register how to select CID RAM banks.
* "1" means interrupt request, "0" means non-interrupt
* Bit 0 (TCIF) TCC timer overflow interrupt flag. Set when TCC timer overflows .
LCD_C2,LCD_C1
0 0
0 1
1 1
CIDA7
7
-
7
INT3
7
unused
/WDTE
6
CIDA6
6
/WURING
/RINGTIME
/WUP9L
PORT9(3:0)
/WUP9H
PORT9(7:4)
/WDTE
FSKDATA
/WUP9H /WUP9L /WURING
LCD Display Control
change duty
Disable(turn off LCD)
Blanking
LCD display enable
6
CIDA5
5
5
CIDA4
fig.9 Wake up function and control signal
C8_2
4
5
4
C8_1
CIDA3
4
3
3
14
INT2 INT1 INT0
LCD_M
0
1
:
:
3
CIDA2
LCD_C2 LCD_C1 LCD_M
2
2
2
duty
1/16
1/8
/WDTEN 0/1=enable/disable
CIDA1
:
:
1
1
1
bias
1/4
1/4
CIDA0
TCIF
0
0
8-bit OTP Micro-controller
0
EM78P811