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PDF EM785841 Data sheet ( Hoja de datos )

Número de pieza EM785841
Descripción (EM785840 / EM785841 / EM785842) 8-BIT MICRO-CONTROLLER
Fabricantes ELAN Microelectronics 
Logotipo ELAN Microelectronics Logotipo



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No Preview Available ! EM785841 Hoja de datos, Descripción, Manual

EM785840/5841/5842
8-BIT MICRO-CONTROLLER
Version 1.2
ELAN MICROELECTRONICS CORP.
No. 12, Innovation 1st RD., Science-Based Industrial Park
Hsin Chu City, Taiwan, R.O.C.
TEL: (03) 5639977
FAX: (03) 5630118

1 page




EM785841 pdf
III. Application
General products application.
IV. Pin Configuration
EM785840/5841/5842
8-bit Micro-controller
CIN/P94
P95
P96
AVDD
AVSS
AD6/P65
AD5/P64
AD4/P63
1 18
AD8/P93
2 17
3 16
AD7/P92
AD2/P91
4 15
AD1/P90
5 14
INT3/P73
6 13 /RESET/P71/INT1
7 12
8 11
9 10
XOUT/P60
XIN/P61
AD3/P62
(a)
/RESET/P71/INT1
XOUT/P60
XIN/P61
CIN/P94
P95
P96
P97
AVDD
AVSS
AD6/P65
AD5/P64
AD4/P63
AD3/P62
XIN/P61
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
AD8/P93
AD7/P92
AD2/P91
AD1/P90
PWM2/PC2
PWM1/PC1
INT3/P73
P74
P75
P76
/RESET/P71/INT1
XOUT/P60
(b) (c)
Fig.1: EM785840 series pin assignment.
(a): EM785840M, EM785840P
(b): EM785841M, EM785841P
(c): EM785842M, EM785842P
__________________________________________________________________________________________________________________________________________________________________
* This specification is subject to change without notice.
2004/11/10 V1.2

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EM785841 arduino
EM785840/5841/5842
8-bit Micro-controller
Bit 6~Bit 7(RPAGE0 ~ RPAGE1): change R5 ~ RE to another page
Please refer to VII.1 Operational registers for detail register configuration.
(RPAGE1,RPAGE0)
R page # selected
(0,0)
R page 0
(0,1)
R page 1
(1,0)
R page 2
(1,1)
R page 3
R4 (RAM selection for common registers R20 ~ R3F))
(RAM selection register)
765 43210
RB1 RB0 RSR5 RSR4 RSR3 RSR2 RSR1 RSR0
R/W-0 R/W-0 R/W R/W R/W R/W R/W R/W
Bit 0 ~ Bit 5 (RSR0 ~ RSR5) : Indirect addressing for common registers R20 ~ R3F
RSR bits are used to select up to 32 registers (R20 to R3F) in the indirect addressing mode.
Bit 6 ~ Bit 7 (RB0 ~ RB1) : Bank selection bits for common registers R20 ~ R3F
These selection bits are used to determine which bank is activated among the 4 banks for 32 register (R20 to
R3F)..
Please refer to VII.1 Operational registers for details.
R5 (Program page selection, PWM control)
PAGE0 (PORT5 I/O data register, Program page register)
76543210
X X X X 0 0 PS1 PS0
- - - - R/W-0 R/W-0 R/W-0 R/W-0
Bit 0 ~ Bit 1 (PS0 ~ PS1) : Program page selection bits
PS1 PS0 Program memory page (Address)
0 0 Page 0
0 1 Page 1
1 0 Page 2
1 1 Page 3
User can use PAGE instruction to change page to maintain program page by user.
Bit2~Bit3 : (undefined) These 2 bits must clear to 0 or MCU will access wronging program code.
Bit4~Bit7 : (undefined) not allowed to use
PAGE1, PAGE2 (Unused registers)
These two registers are not allowed to use.
PAGE3 (PWMCON)
765432
PWM2E PWM1E T2EN T1EN T2P1 T2P0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
Bit 0 ~ Bit 1 ( T1P0 ~ T1P1 ): TMR1 clock prescale option bits.
T1P1
T1P0
Prescale
0 0 1:2(Default)
01
1:8
10
1:32
11
1:64
1
T1P1
R/W-0
0
T1P0
R/W-0
__________________________________________________________________________________________________________________________________________________________________
* This specification is subject to change without notice.
2004/11/10 V1.2

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