参数资料
| 型号： | EFM32TG222F32 |
| 厂商： | Energy Micro |
| 文件页数： | 45/136页 |
| 文件大小： | 0K |
| 描述： | IC MCU 32BIT 32KB FLASH 48LQFP |
| 特色产品： | EFM32 Tiny Gecko |
| 标准包装： | 1 |
| 系列： | Tiny Gecko |
| 核心处理器： | ARM? Cortex?-M3 |
| 芯体尺寸： | 32-位 |
| 速度： | 32MHz |
| 连通性： | I²C，IrDA，智能卡，SPI，UART/USART |
| 外围设备： | 欠压检测/复位，DMA，I²S，POR，PWM，WDT |
| 输入/输出数： | 37 |
| 程序存储器容量： | 32KB（32K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 4K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.8 V ~ 3.8 V |
| 数据转换器： | A/D 4x12b，D/A 1x12b |
| 振荡器型： | 外部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 48-TQFP |
| 包装： | 标准包装 |
| 其它名称： | 914-1029-6 |
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...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
16
www.energymicro.com
Device
The processor preserves transaction order relative to other transactions to
Device or Strongly-ordered memory.
Strongly-ordered
The processor preserves transaction order relative to all other transactions.
The different ordering requirements for Device and Strongly-ordered memory mean that the memory
system can buffer a write to Device memory, but must not buffer a write to Strongly-ordered memory.
The additional memory attributes include.
Execute Never (XN)
Means the processor prevents instruction accesses. Any attempt to fetch an
instruction from an XN region causes a memory management fault exception.
2.2.2 Memory system ordering of memory accesses
For most memory accesses caused by explicit memory access instructions, the memory system does not
guarantee that the order in which the accesses complete matches the program order of the instructions,
providing this does not affect the behavior of the instruction sequence. Normally, if correct program
execution depends on two memory accesses completing in program order, software must insert a
memory barrier instruction between the memory access instructions, see Section 2.2.4 (p. 17) .
However, the memory system does guarantee some ordering of accesses to Device and Strongly-
ordered memory. For two memory access instructions A1 and A2, if A1 occurs before A2 in program
order, the ordering of the memory accesses caused by two instructions is:
Norm al access
Device access, non-shareable
Device access, shareable
St rongly-ordered access
Norm al
access
Non-shareable
Shareable
St rongly-
ordered
access
Device access
A1
A2
-
<
-
<
-
<
-
<
Where:
-
Means that the memory system does not guarantee the ordering of the accesses.
<
Means that accesses are observed in program order, that is, A1 is always observed before A2.
2.2.3 Behavior of memory accesses
The behavior of accesses to each region in the memory map is:
Table 2.11. Memory access behavior
Address
range
Memory region
Memory
type
XN
Description
0x00000000
-
0x1FFFFFFF
Code
Normal
1
-
Executable region for program code. You can also put data here.
0x20000000
-
0x3FFFFFFF
SRAM
Normal
1
-
Executable region for data. You can also put code here.This region
includes bit band and bit band alias areas, see Table 2.12 (p. 18)
.
0x40000000
-
0x5FFFFFFF
Peripheral
Device
1
XN
1
This region includes bit band and bit band alias areas, see
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EFM32TG222F32-QFP48 | 制造商:Energy Micro AS 功能描述:TINY GECKO MCU - Tape and Reel 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 48TQFP |
| EFM32TG222F32-QFP48T | 制造商:Energy Micro AS 功能描述:TINY GECKO MCU - Trays |
| EFM32TG222F32-QFP48-T | 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 48TQFP |
| EFM32-TG222F32-SK | 功能描述:IC MICRO KIT GECKO 48LQFP RoHS:是 类别:套件 >> 半导体产品 - IC 元件分类 系列:Tiny Gecko 其它有关文件:NXPLOGIC2-KIT-ND Contents 标准包装:1 系列:74AUP 套件类型:逻辑 值:180 件 - 18 种值各 10 件 包装:- 安装类型:表面贴装 包括封装:6-XSON，8-XSON，8-XQFN 产品目录页面:2653 (CN2011-ZH PDF) 工具箱内容:(10) 568-4391-1-ND - IC GATE MULT-FUNC CONFIG 6-XSON(10) 568-4390-1-ND - IC CONFIG MULT-FUNC GATE 6-XSON(10) 568-4389-1-ND - IC GATE DUAL FUNCTION 8-XSON(10) 568-4388-1-ND - IC GATE DUAL FUNCTION 8-XQFN(10) 568-4387-1-ND - IC F-F D-TYPE POS EDGE 8-XSON(10) 568-4386-1-ND - IC F-F D-TYPE POS EDGE 8-XQFN(10) 568-4385-1-ND - IC CONFIG MULTI-FUNC GATE 6-XSON(10) 568-4384-1-ND - IC EX-OR GATE 3-IN 6-XSON(10) 568-4383-1-ND - IC F-F D-TYPE POS EDGE 6-XSON(10) 568-4382-1-ND - IC LATCH D-TYPE 6-XSON更多... 其它名称:NXPLOGIC2-KIT |
| EFM32TG222F32-T | 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 48TQFP |
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