EM77950中文资料40 MIPS Flash/OTP/Mask MCU Series数据手册Elan规格书

描述 Description

The EM77950 from ELAN Electronics is a low-cost and high performance 8-bit CMOS advance RISC architecture microcontroller device.It has an on-chip 1-Mbps RF driver module/Base Band (BB), Serial Peripheral Interface (SPI), dual Pulse Width Modulation (PWM) with 16-bit resolution, an 8-bit Timer Clock Counter (TCC) and a 16-bit Free Run Timer, multi-channel Analog to Digital Converter (ADC) with 8-bit resolution, Key Wake-up function (KWU), Power-on Reset (POR), Watchdog Timer (WDT), and power saving Sleep Mode. All these features combine to ensure applications require the least external components, hence, not only reduce system cost, but also have the advantage of low power consumption and enhanced device reliability. 
The 52-pin EM77950 is available in a very cost-effective version that provides a single chip solution in designing wireless products.

特性 Features

Operating Voltage Range: 2.2V ~ 3.6V DCOperating Temperature Range: 0C ~ 70C
Operating Frequency Range: DC ~ 48MHz (1 clock/cycle)
6MHz external clock source
6/12/24/48 MHz Core & BB clock
6/48MHz internal USB clock (Low/Full speed)
12K x 16 bits of on-chip Program ROM
1216 x 8 bits of on-chip Register (SRAM) plus USB indirect addressing RAM
Watchdog Timer (WDT)
16-level stacks for both CALL and interrupt subroutine
Internal Power-on Reset (POR) function.
All single cycle (1 clock) instruction except for conditional branches which are two or three cycles
Direct, indirect and relative addressing modes
Low power, high speed CMOS technology
Power consumption:
< 4 Ma @ 3.3V, 6 MHz
< 1 Ma standby currentOscillators/System ClocksThree oscillator options:
Crystal/Resonate oscillator of high frequency
PLL oscillator: 6MHz, 12 MHz, 24 MHz, and 48 MHz (External crystal should be 6 MHz)
Internal RC oscillator (32kHz)
Three modes of system clocks:
Sleep mode
Green mode
Normal mode
Internal RC oscillator for Power-on Reset (POR) and Watchdog Timer (WDT)
Input and Output (I/O) PinsMax. of 30 I/O pins
Pull-up resistor options
Key Wake-up function
Open drain output options
Timers and CountersProgrammable 8-bit real Time Clock/Counter (TCC) with prescaler and overflow interrupt
16-bit Free Run Counter (FRC) with overflow interrupt
Interrupt Sources and FeaturesHardware priority check
Different interrupt vectors
Interrupts:
Key Wake up
External pin interrupt
16-bit Free Run Counter Overflow
TCC (time-base) overflow
One complete period of Pulse Width Modulation (PWM)
Base band (BB) function interrupts
CSD: carrier sense detection
TX_AE: TX_FIFO almost full
RX_AF: RX_FIFO almost full
TX_ EMPTY: finish a transmitting a package
RX_OF: RX_FIFO overflow
LINK_DIS: zero counter capacitor discharge mechanism
LOCK_OUT: finish receiving a package
LOCK_IN: start receiving a package
USB function interrupts:
Endpoint 0 Interrupt Event:
INT0RX: EP0 USB RX Event
INT0TX: EP0 USB TX Event
INT0IN: EP0 USB IN Token Event
Endpoint X Interrupt Event:
INT1: EP1 Interrupt
INT2: EP2 Interrupt
INT3: EP3 Interrupt
Device State Interrupt Event:
RSTINT: USB Bus Reset Event Detect
IDLEINT: USB Bus Suspend Detect
RUEINT: Enable USB Bus Resume Detect
SOFINT: Start of Frame Interrupt
BasebandSerial to Parallel conversion of RFW102 interface
Input FIFO (RX_FIFO)
Output FIFO (TX_FIFO)
Preamble Correlation
Packet Address Filter (Network and unique)
CRC calculation
Inter-RFWAVES networks Carrier-sense
Discharge of RFW-102 reference capacitor
Compensate for clock drifts between the transmitting EM77930 and the receiving EM77930 up to 1000ppm. Hence, the EM77930 requires low performance crystal
Interrupt Driver
Universal Serial Bus (USB)USB Specification Compliance
Conforms to USB specification, version 1.1
Conforms to USB Human Interface Device (HID) Specification, version 1.1.
5V supplied from PC USB interface
Pulse Width Modulation (PWM)One Pulse Width Modulation (PWM) with 16-bit resolution
Built-in Voltage RegulatorInternal 3.3V regulator is used to be the power source of the MCU and the regulated output pin to provide a pull-up source for the external USB resistor on the downstream D- pin.

应用 Application

require the least external components, hence, not only reduce system cost, but also have the advantage of low power consumption and enhanced device reliability. The 52-pin EM77950 is available in a very cost-effective version that provides a single chip solution in designing wireless products. Features Operating Voltage Range: 2.2V ~ 3.6V DCOperating Temperature Range: 0C ~ 70C
Operating Frequency Range: DC ~ 48MHz (1 clock/cycle)
6MHz external clock source
6/12/24/48 MHz Core & BB clock
6/48MHz internal USB clock (Low/Full speed)
12K x 16 bits of on-chip Program ROM
1216 x 8 bits of on-chip Register (SRAM) plus USB indirect addressing RAM
Watchdog Timer (WDT)
16-level stacks for both CALL and interrupt subroutine
Internal Power-on Reset (POR) function.
All single cycle (1 clock) instruction except for conditional branches which are two or three cycles
Direct, indirect and relative addressing modes
Low power, high speed CMOS technology
Power consumption: