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PDF N79E875 Data sheet ( Hoja de datos )
| Número de pieza | N79E875 | |
| Descripción | 8-BIT MICROCONTROLLER | |
| Fabricantes | Nuvoton | |
| Logotipo |  |
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Preliminary N79E875 DATA SHEET
8-BIT MICROCONTROLLER
Table of Contents-
1 GENERAL DESCRIPTION ......................................................................................................... 5
2 FEATURES ................................................................................................................................. 6
3 PARTS INFORMATION LIST ..................................................................................................... 8
3.1 Lead Free (RoHS) Parts information list......................................................................... 8
4 PIN CONFIGURATION ............................................................................................................... 9
5 PIN DESCRIPTION................................................................................................................... 10
6 MEMORY ORGANIZATION...................................................................................................... 12
6.1 Program Flash Memory ................................................................................................ 12
6.2 Data Flash Memory ...................................................................................................... 12
6.3 Data Memory (accessed by MOVX) ............................................................................. 12
6.4 Scratch-pad RAM and Register Map ............................................................................ 12
6.5 Working Registers ........................................................................................................ 15
6.6 Bit addressable Locations............................................................................................. 15
6.7 Stack ............................................................................................................................. 15
7 SPECIAL FUNCTION REGISTERS ......................................................................................... 16
7.1 SFR Location Table ...................................................................................................... 16
7.2 SFR Detail Bit Descriptions .......................................................................................... 20
8 INSTRUCTION.......................................................................................................................... 70
9 POWER MANAGEMENT.......................................................................................................... 80
9.1 Idle Mode ...................................................................................................................... 80
9.2 Power Down Mode ....................................................................................................... 80
10 RESET CONDITIONS............................................................................................................... 81
10.1 External Reset .............................................................................................................. 81
10.2 Power-On Reset (POR) ................................................................................................ 81
10.3 Watchdog Timer Reset ................................................................................................. 81
10.4 Software Reset ............................................................................................................. 81
10.5 Brownout Reset ............................................................................................................ 81
10.6 Reset State ................................................................................................................... 81
11 INTERRUPTS ........................................................................................................................... 83
11.1 Interrupt Sources .......................................................................................................... 83
11.2 Priority Level Structure ................................................................................................. 85
11.3 Interrupt Response Time .............................................................................................. 87
12 NVM MEMORY ......................................................................................................................... 89
13 PROGRAMMABLE TIMERS/COUNTERS ............................................................................... 90
Publication Release Date: April 13, 2009
- 1 - Revision A02
1 page  
Preliminary N79E875 Data Sheet
1 GENERAL DESCRIPTION
N79E875 series are 8-bit Turbo 51 microcontrollers which have embedded Flash that can be
programmed by ICP (In Circuit Program) or by writer. The instruction sets of the N79E875 series are
fully compatible with the standard 8052. N79E875 series contain a 16K bytes of main Flash EPROM;
a 256 bytes of RAM; 256 bytes AUX-RAM; 128 bytes NVM Data Flash EPROM support; two 16-bit
timer/counters; one 16-bit timer with 3 capture inputs; one 12-bit capture/compare/auto-reload timer;
8-channel multiplexed 10-bit A/D converter; 8-channel 12-bit PWM that includes 6-channel for 3 pairs
complementary PWM; three serial ports that includes a SPI, an I2C and an enhanced full duplex serial
port; one OP amplifier; two analog comparators; 3-level selectable Brownout detector. These
peripherals are supported by 17 sources of four-level interrupt capability. To facilitate programming
and verification, the Flash EPROM inside N79E875 series allow the program memory to be
programmed and read electronically. Once the code is confirmed, the user can protect the code for
security.
N79E875 series, built-in efficient PWM generator and Input capture/timer, are designed for motor
control applications such as E-bike, inverters of DC/BLDC/AC induction/Stepping motor and home
appliance, etc. The built-in rich functions and peripheral also suit to general application.
Publication Release Date: April 13, 2009
- 5 - Revision A02
5 Page 
Preliminary N79E875 Data Sheet
SYMBOL Alternate Alternate Alternate Type DESCRIPTIONS
Function 1 function 2 function 3
P2.5
IC1
MISO
I/O
P2.6
IC2
MOSI
I/O
P2.7
T1
I/O
P3.0
P3.1
P3.2
P3.3
PWM1
PWM3
PWM5
PWM7
I/O Port3:
I/O Support 4 modes output and 2
modes input.
I/O Multifunction pins.
I/O
P3.4
I/O
P3.5
I/O
P3.6
OPP
I/O
P3.7
OPN
I/O
P4.0
P4.1
CP2NB
CP2PB
I/O Support 4 modes output and 2
modes input.
I/O
P4.2
I/O
P4.3
I/O
TYPE: P: P: power, I: input, O: output, I/O: bi-directional with 4-type I/O modes,, H: Internal pull-up, L: Internal pull low, D: Open Drain
Notes:
During Power-on-reset, all port pins are in tri-stated.
After power-on-reset, all port pins state will follow CONFIG0.PRHI bit definition.
All digital input pins support software enabled schmitt trigger buffer which is selected by SFR
PORTS (ECH)
In application if MCU pins need external pull-up, it is recommended to add a pull-up resistor
(10KΩ) between pin and power(VDD) instead of directly wiring pin to VDD for enhancing EMC.
- 11 -
Publication Release Date: April 13, 2009
Revision A02
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet N79E875.PDF ] | |
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