參數(shù)資料
型號: ATMEGA6490-16AI
廠商: Atmel
文件頁數(shù): 76/146頁
文件大小: 0K
描述: IC AVR MCU FLASH 64K 5V 100TQFP
產(chǎn)品培訓(xùn)模塊: megaAVR Introduction
標(biāo)準(zhǔn)包裝: 90
系列: AVR® ATmega
核心處理器: AVR
芯體尺寸: 8-位
速度: 16MHz
連通性: SPI,UART/USART,USI
外圍設(shè)備: 欠壓檢測/復(fù)位,LCD,POR,PWM,WDT
輸入/輸出數(shù): 68
程序存儲器容量: 64KB(32K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量: 4K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-TQFP
包裝: 托盤
配用: ATSTK600-TQFP100-ND - STK600 SOCKET/ADAPTER 100-TQFP
ATSTK504-ND - STARTER KIT AVR EXP MOD 100P LCD
2010-2012 Microchip Technology Inc.
DS41440C-page 319
PIC16(L)F1825/1829
26.4.2.3
EUSART Synchronous Slave
Reception
The operation of the Synchronous Master and Slave
), with the following exceptions:
Sleep
CREN bit is always set, therefore the receiver is
never Idle
SREN bit, which is a “don’t care” in Slave mode
A character may be received while in Sleep mode by
setting the CREN bit prior to entering Sleep. Once the
word is received, the RSR register will transfer the data
to the RCREG register. If the RCIE enable bit is set, the
interrupt generated will wake the device from Sleep
and execute the next instruction. If the GIE bit is also
set, the program will branch to the interrupt vector.
26.4.2.4
Synchronous Slave Reception
Setup:
1.
Set the SYNC and SPEN bits and clear the
CSRC bit.
2.
Clear the ANSEL bit for both the CK and DT pins
(if applicable).
3.
If interrupts are desired, set the RCIE bit of the
PIE1 register and the GIE and PEIE bits of the
INTCON register.
4.
If 9-bit reception is desired, set the RX9 bit.
5.
Set the CREN bit to enable reception.
6.
The RCIF bit will be set when reception is
complete. An interrupt will be generated if the
RCIE bit was set.
7.
If 9-bit mode is enabled, retrieve the Most
Significant bit from the RX9D bit of the RCSTA
register.
8.
Retrieve the eight Least Significant bits from the
receive FIFO by reading the RCREG register.
9.
If an overrun error occurs, clear the error by
either clearing the CREN bit of the RCSTA
register or by clearing the SPEN bit which resets
the EUSART.
TABLE 26-10: SUMMARY OF REGISTERS ASSOCIATED WITH SYNCHRONOUS SLAVE
RECEPTION
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register on
Page
APFCON0
RXDTSEL
SDO1SEL(1) SS1SEL(1)
T1GSEL
TXCKSEL
BAUDCON
ABDOVF
RCIDL
—SCKP
BRG16
WUE
ABDEN
INTCON
GIE
PEIE
TMR0IE
INTE
IOCIE
TMR0IF
INTF
IOCIF
PIE1
TMR1GIE
ADIE
RCIE
TXIE
SSP1IE
CCP1IE
TMR2IE
TMR1IE
PIR1
TMR1GIF
ADIF
RCIF
TXIF
SSP1IF
CCP1IF
TMR2IF
TMR1IF
RCREG
EUSART Receive Data Register
RCSTA
SPEN
RX9
SREN
CREN
ADDEN
FERR
OERR
RX9D
TXSTA
CSRC
TX9
TXEN
SYNC
SENDB
BRGH
TRMT
TX9D
Legend:
— Unimplemented location, read as ‘0’. Shaded cells are not used for synchronous slave reception.
* Page provides register information.
Note
1:
PIC16(L)F1825 only.
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