參數(shù)資料
型號： AT90USB1286-MU
廠商： Atmel
文件頁數(shù)： 75/106頁
文件大小： 0K
描述： IC AVR MCU 128K 64QFN
產(chǎn)品培訓(xùn)模塊： megaAVR Introduction
標(biāo)準(zhǔn)包裝： 1,300
系列： AVR®
應(yīng)用： USB 微控制器
核心處理器： AVR
程序存儲器類型： 閃存（128 kB）
控制器系列： AT90 USB
RAM 容量： 8K x 8
接口： 2 線串行，SPI 串行，USART，USB
輸入/輸出數(shù)： 48
電源電壓： 2.7 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 64-VFQFN 裸露焊盤
包裝： 托盤
供應(yīng)商設(shè)備封裝： 64-QFN（8x8）
配用： ATSTK600-TQFP64-ND - STK600 SOCKET/ADAPTER 64-TQFP
ATSTK525-ND - KIT STARTER FOR AT90USB
AT90USBKEY2-ND - KIT DEMO FOR AT90USB
其它名稱： AT90USB1286-16MU
AT90USB1286-16MU-ND
70
7593L–AVR–09/12
AT90USB64/128
Loader section of the Flash. The actual address of the start of the Boot Flash Section is deter-
mined by the BOOTSZ Fuses. Refer to Section “Memory programming” on page 359 for details.
To avoid unintentional changes of Interrupt Vector tables, a special write procedure must be fol-
lowed to change the IVSEL bit:
a.
Write the Interrupt Vector Change Enable (IVCE) bit to one.
b.
Within four cycles, write the desired value to IVSEL while writing a zero to IVCE.
Interrupts will automatically be disabled while this sequence is executed. Interrupts are disabled
in the cycle IVCE is set, and they remain disabled until after the instruction following the write to
IVSEL. If IVSEL is not written, interrupts remain disabled for four cycles. The I-bit in the Status
Register is unaffected by the automatic disabling.
Note:
If Interrupt Vectors are placed in the Boot Loader section and Boot Lock bit BLB02 is programmed,
interrupts are disabled while executing from the Application section. If Interrupt Vectors are placed
in the Application section and Boot Lock bit BLB12 is programed, interrupts are disabled while
executing from the Boot Loader section. Refer to the section “Memory programming” on page 359
for details on Boot Lock bits.
Bit 0 – IVCE: Interrupt Vector Change Enable
The IVCE bit must be written to logic one to enable change of the IVSEL bit. IVCE is cleared by
hardware four cycles after it is written or when IVSEL is written. Setting the IVCE bit will disable
interrupts, as explained in the IVSEL description above. See code example below.
Assembly code example
Move_interrupts:
; Get MCUCR
in
r16, MCUCR
mov
r17, r16
; Enable change of Interrupt Vectors
ori
r16, (1<<IVCE)
out
MCUCR, r16
; Move interrupts to Boot Flash section
ori
r17, (1<<IVSEL)
out
MCUCR, r17
ret
C code example
void
Move_interrupts(void)
{
unsigned char temp;
/* Get MCUCR */
temp = MCUCR;
/* Enable change of Interrupt Vectors */
MCUCR = temp | (1<<IVCE);
/* Move interrupts to Boot Flash section */
MCUCR = temp | (1<<IVSEL);
}
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT90USB1286-MUR 功能描述:8位微控制器 -MCU USB 128K FLASH 16 MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT
AT90USB1287 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
AT90USB1287-16AU 功能描述:8位微控制器 -MCU 128kB Flash 4kB EEPROM 48 I/O Pins RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT
AT90USB1287-16AUR 功能描述:8位微控制器 -MCU 128K Flash RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT
AT90USB1287-16ME 制造商:Atmel Corporation 功能描述:
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