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参数资料
| 型号： | AT32UC3A3-XPLD |
| 厂商： | Atmel |
| 文件页数： | 87/94页 |
| 文件大小： | 0K |
| 描述： | KIT DEV/EVAL FOR AT32UC3A3 |
| 产品培训模块： | AVR® UC3 Introduction Sensors Xplained |
| 标准包装： | 1 |
| 系列： | AVR®32 UC3-A3 Xplained |
| 类型： | MCU |
| 适用于相关产品： | AT32UC3A3 |
| 所含物品： | 板 |
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88
32072SH–AVR32–10/2012
AT32UC3A3
10.3.9
PDCA
PCONTROL.CHxRES is non-functional
PCONTROL.CHxRES is non-functional. Counters are reset at power-on, and cannot be
reset by software.
Fix/Workaround
Software needs to keep history of performance counters.
Transfer error will stall a transmit peripheral handshake interface
If a transfer error is encountered on a channel transmitting to a peripheral, the peripheral
handshake of the active channel will stall and the PDCA will not do any more transfers on
the affected peripheral handshake interface.
Fix/Workaround
Disable and then enable the peripheral after the transfer error.
10.3.10
AES
URAD (Unspecified Register Access Detection Status) does not detect read accesses
to the write-only KEYW[5..8]R registers
Fix/Workaround
None.
10.3.11
HMATRIX
In the PRAS and PRBS registers, the MxPR fields are only two bits
In the PRAS and PRBS registers, the MxPR fields are only two bits wide, instead of four bits.
The unused bits are undefined when reading the registers.
Fix/Workaround
Mask undefined bits when reading PRAS and PRBS.
10.3.12
TWIM
TWIM SR.IDLE goes high immediately when NAK is received
When a NAK is received and there is a non-zero number of bytes to be transmitted,
SR.IDLE goes high immediately and does not wait for the STOP condition to be sent. This
does not cause any problem just by itself, but can cause a problem if software waits for
SR.IDLE to go high and then immediately disables the TWIM by writing a one to CR.MDIS.
Disabling the TWIM causes the TWCK and TWD pins to go high immediately, so the STOP
condition will not be transmitted correctly.
Fix/Workaround
If possible, do not disable the TWIM. If it is absolutely necessary to disable the TWIM, there
must be a software delay of at least two TWCK periods between the detection of
SR.IDLE==1 and the disabling of the TWIM.
TWIM TWALM polarity is wrong
The TWALM signal in the TWIM is active high instead of active low.
Fix/Workaround
Use an external inverter to invert the signal going into the TWIM. When using both TWIM
and TWIS on the same pins, the TWALM cannot be used.
10.3.13
TWIS
TWIS Version Register reads zero
TWIS Version Register (VR) reads zero instead of 0x112.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT32UC3A4128 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-bit AVR? Microcontroller |
| AT32UC3A4128-C1UR | 功能描述:32位微控制器 - MCU 128k flash Ind RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| AT32UC3A4128-C1UT | 功能描述:32位微控制器 - MCU 128k flash Ind RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| AT32UC3A4128HBZ-C1UR | 制造商:Atmel Corporation 功能描述:128K FLASH 100 BALL TBGA REEL INDUSTRIAL - Tape and Reel |
| AT32UC3A4128S | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-bit AVR? Microcontroller |
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