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  • 參數資料
    型號: PIC16C72AT-20E/SO
    廠商: Microchip Technology
    文件頁數: 54/120頁
    文件大?。?/td> 0K
    描述: IC MCU OTP 2KX14 A/D PWM 28SOIC
    標準包裝: 1,600
    系列: PIC® 16C
    核心處理器: PIC
    芯體尺寸: 8-位
    速度: 20MHz
    連通性: I²C,SPI
    外圍設備: 欠壓檢測/復位,POR,PWM,WDT
    輸入/輸出數: 22
    程序存儲器容量: 3.5KB(2K x 14)
    程序存儲器類型: OTP
    RAM 容量: 128 x 8
    電壓 - 電源 (Vcc/Vdd): 4 V ~ 5.5 V
    數據轉換器: A/D 5x8b
    振蕩器型: 外部
    工作溫度: -40°C ~ 125°C
    封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
    包裝: 帶卷 (TR)
    PIC16C62B/72A
    1999 Microchip Technology Inc.
    Preliminary
    DS35008B-page 39
    8.0
    SYNCHRONOUS SERIAL PORT
    (SSP) MODULE
    8.1
    SSP Module Overview
    The Synchronous Serial Port (SSP) module is a serial
    interface useful for communicating with other periph-
    eral or microcontroller devices. These peripheral
    devices may be Serial EEPROMs, shift registers, dis-
    play drivers, A/D converters, etc. The SSP module can
    operate in one of two modes:
    Serial Peripheral Interface (SPI)
    Inter-Integrated Circuit (I2C)
    For more information on SSP operation (including an
    I2C Overview), refer to the PICmicro Mid-Range Ref-
    erence Manual, (DS33023). Also, refer to Application
    Note AN578,
    “Use of the SSP Module in the I 2C Multi-
    Master Environment.”
    8.2
    SPI Mode
    This section contains register definitions and opera-
    tional characteristics of the SPI module.
    Additional information on SPI operation may be found
    in the PICmicro Mid-Range Reference Manual,
    (DS33023).
    8.2.1
    OPERATION OF SSP MODULE IN SPI
    MODE
    A block diagram of the SSP Module in SPI Mode is
    shown in Figure 8-1.
    The SPI mode allows 8-bits of data to be synchro-
    nously transmitted and received simultaneously. To
    accomplish communication, three pins are used:
    Serial Data Out (SDO)RC5/SDO
    Serial Data In (SDI)RC4/SDI/SDA
    Serial Clock (SCK)RC3/SCK/SCL
    Additionally, a fourth pin may be used when in a slave
    mode of operation:
    Slave Select (SS)RA5/SS/AN4
    When initializing the SPI, several options need to be
    specified. This is done by programming the appropriate
    control bits in the SSPCON register (SSPCON<5:0>)
    and SSPSTAT<7:6>. These control bits allow the fol-
    lowing to be specified:
    Master Operation (SCK is the clock output)
    Slave Mode (SCK is the clock input)
    Clock Polarity (Idle state of SCK)
    Clock Edge (Output data on rising/falling edge of
    SCK)
    Clock Rate (master operation only)
    Slave Select Mode (Slave mode only)
    To enable the serial port, SSP Enable bit, SSPEN
    (SSPCON<5>) must be set. To reset or reconfigure SPI
    mode, clear bit SSPEN, re-initialize the SSPCON reg-
    ister, and then set bit SSPEN. This configures the SDI,
    SDO, SCK and SS pins as serial port pins. For the pins
    to behave as the serial port function, they must have
    their data direction bits (in the TRISC register) appro-
    priately programmed. That is:
    SDI must have TRISC<4> set
    SDO must have TRISC<5> cleared
    SCK (master operation) must have TRISC<3>
    cleared
    SCK (Slave mode) must have TRISC<3> set
    SS must have TRISA<5> set (if used)
    FIGURE 8-1:
    SSP BLOCK DIAGRAM
    (SPI MODE)
    Note:
    When the SPI is in Slave Mode with SS pin
    control enabled, (SSPCON<3:0> = 0100)
    the SPI module will reset if the SS pin is set
    to VDD.
    Note:
    If the SPI is used in Slave Mode with
    CKE = '1', then the SS pin control must be
    enabled.
    Read
    Write
    Internal
    Data Bus
    RC4/SDI/SDA
    RC5/SDO
    RA5/SS/AN4
    RC3/SCK/
    SSPSR reg
    SSPBUF reg
    SSPM3:SSPM0
    bit0
    Shift
    Clock
    SS Control
    Enable
    Edge
    Select
    Clock Select
    TMR2 output
    TCY
    Prescaler
    4, 16, 64
    TRISC<3>
    2
    Edge
    Select
    2
    4
    SCL
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    PIC16C72AT-20I/ML 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
    PIC16C72AT-20I/SO 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
    PIC16C72AT-20I/SS 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
    PIC16C72T-04/SO 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
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