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參數(shù)資料
| 型號： | EM78568 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-BIT MICRO-CONTROLLER for FRS |
| 中文描述： | 8位微控制器為FRS |
| 文件頁數(shù)： | 8/54頁 |
| 文件大?。?/td> | 494K |
| 代理商： | EM78568 |
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EM78568
8-bit Micro-controller for FRS
__________________________________________________________________________________________________________________________________________________________________
* This specification are subject to be changed without notice.
07/28/2004 V3.5
VI. Pin Descriptions
PIN
POWER
VDD
AVDD
VSS
AVSS
CLOCK
XIN
XOUT
PLLC
LCD
COM0 ~ COM3 O
SEG0 ~ SEG9
SEG10 ~ SEG12
SEG13 ~ SEG19
Programming
tone generators
TONE
Comparator
CMP1
CMP2
CMP3
8-bit D/A
DAO
I/O
POWER
DESCRIPTION
Digital power
Analog power
Digital ground
Analog ground
Input pin for 32.768 kHz oscillator
Output pin for 32.768 kHz oscillator
Phase loop lock capacitor, connect a capacitor 0.01u to 0.047u to the ground.
Common driver pins of LCD drivers
Segment driver pins of LCD drivers
SEG10 to SEG19 are shared with IO PORT.
POWER
I
O
I
O
O (I/O : PORT5)
O (I/O : PORT9)
O
I (P62)
I (P63)
I (P64)
O (P67)
Programming single tone or dual tone output
Comparator input pins. Shared with PORT62, PORT63 and PORT64.
D/A converter output pin.
Shared with PORT67
Microphone amplifier output. Put a feedback resistor to adjust the gain
Microphone amplifier input
Receiver amplifier output. Put a feedback resistor to adjust the gain
Receiver amplifier input
Receiving audio output
Share with PORT65
Modulation transmission output for CTCSS tone
Shared with PORT66
PORT5 can be INPUT or OUTPUT port each bit.
PORT5(7:5) are shared with LCD Segment signal.
PORT6 can be INPUT or OUTPUT port each bit.
PORT7 can be INPUT or OUTPUT port each bit.
Internal Pull high function.
PORT7(0~3) has interrupt function.
PORT8 can be INPUT or OUTPUT port each bit.
Internal pull high.
PORT8(0~3) have wake-up functions(set by RE PAGE0)
CTCSS
MICO
MICI
RXO
RXI
AURX
O
I
O
I
O (P65)
MTX
O (P66)
IO
P55~P57
I/O
P60 ~P67
P70 ~ P77
I/O
I/O
P80 ~ P87
I/O
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