Jiuqi ny8b062d MCU specification /datasheet

In order to EPROM As memory 8 Bit microcontroller , Designed for household appliances O Or measurement, etc I/ Application design . use CMOS Technology also provides customer advantages 、 performance 、 And high cost performance . NY8B062D The core is based on RISC Professional tutorial group framework can be easily edited and controlled , share 55 Orders . Except for the need to 2 individual , Most instructions are 1 One can complete , It allows users to easily complete different tasks with program control . Therefore, it is very suitable for all kinds of applications with low and medium memory capacity .NY8B0062D Built in false plus eleven twelve channel metaclass ratio digit selector , And camel bit voltage comparator , It can deal with the details and measurement of analog interface in various complex situations . stay I/O In terms of resources ,NY8B062D Yes 14 Root elastic I/O foot , Every I/O A separate tenter controls the input or output pins . And every one I/O The additional program control functions of the foot position are as follows: pull or pull down or open leakage （Open-Drain） Output control . In addition, for infrared shake products ,NY8B062D Built in frequency infrared carrier transmitter .
NY8B062D There are four sets of timed events , Use the system frequency as the general timing or trigger counting from the external supply number . LED、 Or buzzer, etc .
NY8B062D Adopt double loop mechanism , You can choose internal RC Mechanism or external crystal input . Protest mode （ Standby mode ） And sleep patterns （ Pause mode ） It can save power consumption and prolong battery life . And the microcontroller is used internally RC At extreme speed , Speed can use external low crystal at the same time . Timing can maintain high-speed processing while calculating the real time . ) To deal with emergencies .
function ：
- Wide operating voltage ：[email protected] System frequency ≦[email protected] System frequency >8MHz.
- Wide operating temperature ：-40°C~85°C.
-2Kx14 position EPROM.
-128 byte SRAM.
-14 The root can control the direction of input and output separately I/O foot （GPIO）、PA[7:0]、PB[5:0].
-PA[5,3:0] And PB[3:0] Use the built-in drop-down search when selecting input .
-PA:0] And [5:0]PB Input with pull-up resistor .
-PB[5:0] Brain open circuit output (Open-Drain).
-PA[5] It looks like input or open output (Open-Drain).
- all I/O The foot output is usually filled with current （Normal Sink current） Or high current （Large Sink Current）, except PA5 Outside .
-8 Layer program (Stack).
- There are direct or specific location patterns for accessing data .
- A group of 8 Bit upper number occurs (Timer0) Including programmable frequency pre division line .
- Three groups of 10 Bit down occurs (Timer1, 2, 3) Choose to repeatedly load or count the time consecutively .
- Three 10 Bit width modulation (PWM1, 2, 3).
- Three buzzer outputs (BZ1, 2, 3).
-38KHz/57KHz Infrared carrier signal selection , At the same time, the choice of payment can also be based on data .
- Accurate low voltage internal circuit (LVD).
- Built in eleven passage 12 Bit class ratio converter （Analog to Digital Converter）.
- Built in accurate voltage comparator （Voltage Comparator）.
- Built in power on reset circuit (POR).
- Built in low voltage reset function （LVR）.
- Built in watchdog timing （WDT）, Program soft body control switch .
- Internal function establishes frequency converter (RFC).

Memory structure
NY8B062D There are two types of memory ： One is program memory , One is data memory .
1. Program memory
NY8B062D The program storage space is 2K word . therefore , Program counter (PC) by 11 A wide , In order to address any location of the program memory .
Some locations of the program memory are reserved as interrupt entries . The power on reset vector is located at 0x000. The software interrupt vector is located at 0x001. Internal and external hardware interrupt vectors are located at 0x008.
NY8B062D Provides GOTOA、callA Instructions to address program space 256 A place . NY8B062D It also provides LCALL and LGOTO Instructions to address anywhere in the program space . When a call or interrupt occurs , next ROM Write the address to the top of the stack , When executed RET、RETIA or RETIE When the command , The data at the top of the stack is read and loaded into PC.
NY8B062D Program ROM Address 0x7FE~0x7FF It's reserved space , If users try to write code in these addresses, they will get unexpected error functions .
NY8A062D Program ROM Address 0x00E~0x00F Is a preset scrolling code , It can be used as normal program space .
2. Data storage
According to the instructions used to access the data memory , Data storage can be divided into three categories ： One is R Page special function register （SFR）+ General registers （GPR）, One is F page SFR, The other is yes S page SFR. GPR from SRAM constitute , Users can use them to store variables or intermediate results .R Page data storage is divided into 4 individual bank, Can pass SFR Registers are accessed directly or indirectly , File selection register (FSR). STATUS [7:6] Used as a Bank register BK[1:0] From the 4 individual bank Choose one of them bank.
R Page registers can be divided into addressing modes ： Direct addressing mode and indirect addressing mode .