參數(shù)資料
型號: T89C51CC01UA-SLSIM
廠商: Atmel
文件頁數(shù): 48/123頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
標(biāo)準(zhǔn)包裝: 27
系列: AT89C CAN
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: CAN,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
配用: AT89STK-06-ND - KIT DEMOBOARD 8051 MCU W/CAN
其它名稱: T89C51CC01UASLSIM
2007 Microchip Technology Inc.
Preliminary
DS70165E-page 139
dsPIC33F
7.4
DMA Initialization Example
The following is a DMA initialization example:
EXAMPLE 7-1:
DMA SAMPLE INITIALIZATION METHOD
// Clear all DMA controller status bits to a known state
DMACS0 =
0;
// Set up DMA Channel 0: Word mode, Read from Peripheral & Write to DMA; Interrupt when all the
data has been moved; Indirect with post-increment; Continuous mode with Ping-Pong Disabled
DMA0CON =
0x0000;
//Automatic DMA transfer initiation by DMA request; DMA Peripheral IRQ Number set up for ADC1
DMA0REQ =
0x000D;
// Set up offset into DMA RAM so that the buffer that collects ADC result data starts at the base
of DMA RAM
DMA0STA =
0x0000;
// DMA0PAD should be loaded with the address of the ADC conversion result register
DMA0PAD =
(volatile unsigned int) &ADC1BUF0;
// DMA transfer of 256 words of data
DMA0CNT = 0x0100 ;
//Clear the DMA0 Interrupt Flag
IFS0bits.DMA0IF = 0;
//Enable DMA0 Interrupts
IEC0bits.DMA0IE = 1;
//Enable the DMA0 Channel
DMA0CONbits.CHEN = 1;
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