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PDF EM78P331N Data sheet ( Hoja de datos )
| Número de pieza | EM78P331N | |
| Descripción | (EM78P330N / EM78P331N) 8-Bit Microprocessor | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EM78P331N (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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EM78P330/331NxJ/xS
8-Bit Microprocessor
with OTP ROM
Product
www.DataSheet.net/
Specification
DOC. VERSION 1.1
ELAN MICROELECTRONICS CORP.
March 2007
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
Contents
6.8 Interrupt ............................................................................................................ 63
6.9 Analog-to-Digital Converter (ADC) ................................................................... 65
6.9.1 ADC Control Register (AISR/Bank 2 R8, ADCON/ Bank 2 R9,
ADOC/ Bank 2 RA) ............................................................................................65
6.9.1.1 Bank 2 R8 (AISR: ADC Input Select Register)...................................65
6.9.1.2 Bank 2 R9 (ADCON: ADC Control Register) .....................................66
6.9.1.3 Bank 2 RA (ADOC: ADC Offset Calibration Register)........................68
6.9.2 ADC Data Register (ADDATA/Bank 2 RB, ADDATA1H/Bank 2 RC,
ADDATA1L/Bank 2 RD) .....................................................................................68
6.9.3 ADC Sampling Time ..........................................................................................68
6.9.4 AD Conversion Time .........................................................................................68
6.9.5 ADC Operation during Sleep Mode...................................................................69
6.9.6 Programming Process/Considerations..............................................................69
6.9.6.1 Programming Process........................................................................69
6.9.6.2 Sample Demo Programs ....................................................................70
6.10 Dual Sets of PWM (Pulse Width Modulation) ................................................... 72
6.10.1 Overview ...........................................................................................................72
6.10.2 Increment Timer Counter ..................................................................................73
6.10.3 PWM Time Period .............................................................................................73
6.10.4 PWM Duty Cycle ...............................................................................................74
6.10.5 Comparator X ....................................................................................................74
6.10.6 PWM Programming Process/Steps...................................................................74
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6.11 Timer ................................................................................................................ 74
6.11.1 Overview ...........................................................................................................74
6.11.2 Function Description..........................................................................................75
6.11.3 Programming the Related Registers .................................................................76
6.11.3.1 Related Control Registers of TMR1, TMR2, and TMR3.....................76
6.11.4 Timer Programming Process/Steps...................................................................76
6.12 Comparator ...................................................................................................... 76
6.12.1 External Reference Signal ................................................................................77
6.12.2 Comparator Outputs..........................................................................................77
6.12.3 Using Comparator as an Operation Amplifier....................................................78
6.12.4 Comparator Interrupt .........................................................................................78
6.12.5 Wake-up from Sleep Mode................................................................................78
6.13 Oscillator .......................................................................................................... 78
6.13.1 Oscillator Modes................................................................................................78
6.13.2 Crystal Oscillator/Ceramic Resonators (Crystal)...............................................79
6.13.3 External RC Oscillator Mode.............................................................................80
6.13.4 Internal RC Oscillator Mode ..............................................................................81
6.14 Power-on Considerations ................................................................................. 82
6.14.1 External Power-on Reset Circuit .......................................................................82
6.14.2 Residual Voltage Protection ..............................................................................83
6.15 LVD (Low Voltage Detector) ............................................................................. 84
Product Specification (V1.1) 03.13.2007
•v
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
EM78P330/331N
8-Bit Microprocessor with OTP ROM
5.2
EM78P331N
Symbol
P50~P57
P60~P67
P70~P77
P80 ~ P84
INT0, INT1
Ain0~Ain7
PWM1
PWM2
PWM3
BO
VREF
CIN-
CIN+
CO
/RESET
TCC
CNTR1
CNTR2
Sin
Sout
Sck
OSCI
OSCO
XIN
XOUT
VDD
VSS
Pin No.
11~12
16~17
27~30
Type
I/O
18~25 I/O
30~32
1~5
6~8
10, 15
16, 17
I/O
I/O
I
18~25
I
30
31 O
32
10 O
15 I
26 I
27 I
28 O
9I
57 I
4
5
I
8I
7O
6 I/O
12 I
11 O
1I
2O
14 –
13 –
Function
8-bit General purpose input/output pins
Default value at power-on reset
8-bit General purpose input/output pins
Default value at power-on reset
8-bit General purpose input/output pins
Default value at power-on reset
5-bit General purpose input/output pins
Default value at power-on reset
External interrupt pin triggered by a falling edge
8-bit Analog-to-Digital Converter
Defined by AISR (Bank 2 R8) <0 : 7>
Pulse width modulation outputs
Defined by PWMCON (Bank 1-R5)<5 : 7>
Buzzer output driver
External reference voltage for ADC
Defined by ADCON (Bank 2 R9) <7>.
“-“ : the input pin of Vin- of the comparator
“+” : the input pin of Vin+ of the comparator
Pin CO is the comparator output
Defined by CMPCON (IOCA) <0:1>
General-purpose Input only
If it remains at logic low, the device will be reset
Wake-up from sleep mode when pin status changes
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Voltage on /RESET must not exceed Vdd during normal
mode
Real time clock/counter with Schmitt Trigger input pin. It
must be tied to VDD or VSS if not in use.
Counter 1 / Counter 2 with Schmitt Trigger input pin.
Sin pin is used to input serial data signals by software.
Sin pin is also used as Port P82.
Sout pin is used to input serial data signals by software.
Sout pin is also used as Port P81.
Sck pin is used to input and output synchronous clock
signals for serial data transfer by software.
Sck pin is also used as Port P80.
Crystal type: Crystal input terminal or external clock input
pin
RC type: RC oscillator input pin
Crystal type: Output terminal for crystal oscillator or external
clock input pin.
RC type: Clock output with a duration of one instruction
cycle time. The prescaler is determined by the
CONT register.
External clock signal input.
Low crystal 32.768kHz input
Low crystal 32.768kHz output
Power supply
Ground
Product Specification (V 1.1) 03.13.2007
(This specification is subject to change without further notice)
•5
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
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