參數(shù)資料
      型號(hào): PIC16F1826-I/MV
      廠商: Microchip Technology
      文件頁(yè)數(shù): 34/109頁(yè)
      文件大?。?/td> 0K
      描述: IC PIC MCU FLASH 2K 28-UQFN
      產(chǎn)品培訓(xùn)模塊: XLP Deep Sleep Mode
      8-bit PIC® Microcontroller Portfolio
      特色產(chǎn)品: Extreme Low Power (XLP) Microcontrollers
      標(biāo)準(zhǔn)包裝: 91
      系列: PIC® XLP™ mTouch™ 16F
      核心處理器: PIC
      芯體尺寸: 8-位
      速度: 32MHz
      連通性: I²C,SPI,UART/USART
      外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
      輸入/輸出數(shù): 16
      程序存儲(chǔ)器容量: 3.5KB(2K x 14)
      程序存儲(chǔ)器類型: 閃存
      EEPROM 大小: 256 x 8
      RAM 容量: 256 x 8
      電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
      數(shù)據(jù)轉(zhuǎn)換器: A/D 12x10b
      振蕩器型: 內(nèi)部
      工作溫度: -40°C ~ 85°C
      封裝/外殼: 28-UFQFN 裸露焊盤
      包裝: 托盤
      產(chǎn)品目錄頁(yè)面: 655 (CN2011-ZH PDF)
      189
      2570N–AVR–05/11
      ATmega325/3250/645/6450
      21.2.3
      SPI Slave Operation Example
      The following code demonstrates how to use the USI module as a SPI Slave:
      init:
      ldi
      r16,(1<<USIWM0)|(1<<USICS1)
      sts
      USICR,r16
      ...
      SlaveSPITransfer:
      sts
      USIDR,r16
      ldi
      r16,(1<<USIOIF)
      sts
      USISR,r16
      SlaveSPITransfer_loop:
      lds
      r16, USISR
      sbrs
      r16, USIOIF
      rjmp
      SlaveSPITransfer_loop
      lds
      r16,USIDR
      ret
      The code is size optimized using only eight instructions (+ ret). The code example assumes that
      the DO is configured as output and USCK pin is configured as input in the DDR Register. The
      value stored in register r16 prior to the function is called is transferred to the master device, and
      when the transfer is completed the data received from the Master is stored back into the r16
      Register.
      Note that the first two instructions is for initialization only and needs only to be executed
      once.These instructions sets Three-wire mode and positive edge Shift Register clock. The loop
      is repeated until the USI Counter Overflow Flag is set.
      21.2.4
      Two-wire Mode
      The USI Two-wire mode is compliant to the Inter IC (TWI) bus protocol, but without slew rate lim-
      iting on outputs and input noise filtering. Pin names used by this mode are SCL and SDA.
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