参数资料
型号: AT32UC3L032-D3HT
厂商: Atmel
文件页数: 155/174页
文件大小: 0K
描述: MCU AVR32 32K FLASH 48TTLGA
产品培训模块: AVR® UC3 Introduction
标准包装: 2,450
系列: AVR®32 UC3 L
核心处理器: AVR
芯体尺寸: 32-位
速度: 50MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,POR,PWM,WDT
输入/输出数: 36
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 16K x 8
电压 - 电源 (Vcc/Vdd): 1.62 V ~ 3.6 V
数据转换器: A/D 9x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 48-UFLGA
包装: 托盘
81
32099I–01/2012
AT32UC3L016/32/64
Figure 8-2.
High Speed Mode
8.4.6
Quick Page Read
A dedicated command, Quick Page Read (QPR), is provided to read all words in an addressed
page. All bits in all words in this page are AND’ed together, returning a 1-bit result. This result is
placed in the Quick Page Read Result (QPRR) bit in Flash Status Register (FSR). The QPR
command is useful to check that a page is in an erased state. The QPR instruction is much
faster than performing the erased-page check using a regular software subroutine.
8.4.7
Quick User Page Read
A dedicated command, Quick User Page Read (QPRUP), is provided to read all words in the
user page. All bits in all words in this page are AND’ed together, returning a 1-bit result. This
result is placed in the Quick Page Read Result (QPRR) bit in Flash Status Register (FSR). The
QPRUP command is useful to check that a page is in an erased state. The QPRUP instruction is
much faster than performing the erased-page check using a regular software subroutine.
8.4.8
Page Buffer Operations
The flash memory has a write and erase granularity of one page; data is written and erased in
chunks of one page. When programming a page, the user must first write the new data into the
Page Buffer. The contents of the entire Page Buffer is copied into the desired page in flash
memory when the user issues the Write Page command, Refer to Section 8.5.1 on page 83.
In order to program data into flash page Y, write the desired data to locations Y0 to Y31 in the
regular flash memory map. Writing to an address A in the flash memory map will not update the
flash memory, but will instead update location A%32 in the page buffer. The PAGEN field in the
Flash Command (FCMD) register will at the same time be updated with the value A/32.
Frequency
Frequency limit
for 0 wait state
operation
No
rm
al
Hi
gh
Speed mode
1 wait state
0 wait state
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