參數(shù)資料
型號： EFM32TG222F32
廠商： Energy Micro
文件頁數(shù)： 134/136頁
文件大小： 0K
描述： IC MCU 32BIT 32KB FLASH 48LQFP
特色產(chǎn)品： EFM32 Tiny Gecko
標(biāo)準(zhǔn)包裝： 1
系列： Tiny Gecko
核心處理器： ARM? Cortex?-M3
芯體尺寸： 32-位
速度： 32MHz
連通性： I²C，IrDA，智能卡，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，DMA，I²S，POR，PWM，WDT
輸入/輸出數(shù)： 37
程序存儲器容量： 32KB（32K x 8）
程序存儲器類型： 閃存
RAM 容量： 4K x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 3.8 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 4x12b，D/A 1x12b
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 48-TQFP
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： 914-1029-6
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
97
www.energymicro.com
See the register summary in Table 4.12 (p. 94), and the Type descriptions in Table 4.15 (p. 97)
, for the ICSR attributes. The bit assignments are:
31
28
22 21
9
10
0
VECTACTIVE
30 29
27 26
23
24
12 11
VECTPENDING
NMIPENDSET
PENDSVSET
PENDSVCLR
Reserved for Debug
ISRPENDING
Reserved
RETTOBASE
25
PENDSTSET
PENDSTCLR
8
Reserved
Table 4.15. ICSR bit assignments
Bits
Name
Type
Function
[31]
NMIPENDSET
RW
NMI set-pending bit.
Write:
0 = no effect1 = changes NMI exception state to pending.
Read:
0 = NMI exception is not pending
1 = NMI exception is pending.
Because NMI is the highest-priority exception, normally the processor enter the
NMI exception handler as soon as it registers a write of 1 to this bit, and entering
the handler clears this bit to 0. A read of this bit by the NMI exception handler
returns 1 only if the NMI signal is reasserted while the processor is executing that
handler.
[30:29]
-
Reserved.
[28]
PENDSVSET
RW
PendSV set-pending bit.
Write:
0 = no effect1 = changes PendSV exception state to pending.
Read:
0 = PendSV exception is not pending
1 = PendSV exception is pending.
Writing 1 to this bit is the only way to set the PendSV exception state to pending.
[27]
PENDSVCLR
WO
PendSV clear-pending bit.
Write:
0 = no effect1 = removes the pending state from the PendSV exception.
[26]
PENDSTSET
RW
SysTick exception set-pending bit.
Write:
0 = no effect1 = changes SysTick exception state to pending.
Read:
0 = SysTick exception is not pending
1 = SysTick exception is pending.
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