參數(shù)資料
型號: AT91SAM7SE32-CU-999
廠商: Atmel
文件頁數(shù): 26/47頁
文件大小: 0K
描述: IC MCU ARM7 32KB FLASH 144LFBGA
產品培訓模塊: MCU Product Line Introduction
產品變化通告: AT91SAM7SE32 Obsolescence 10/May/2012
標準包裝: 3,000
系列: SAM7SE
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 55MHz
連通性: EBI/EMI,I²C,SPI,SSC,UART/USART,USB
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 88
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
RAM 容量: 8K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 1.95 V
數(shù)據(jù)轉換器: A/D 8x10b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 144-LFBGA
包裝: 帶卷 (TR)
配用: AT91SAM7SE-EK-ND - EVAL BOARD FOR AT91SAM7SE
AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
32
6222GS–ATARM–6-Sep-11
SAM7SE512/256/32 Summary
Figure 9-3.
Power Management Controller Block Diagram
9.4
Advanced Interrupt Controller
Controls the interrupt lines (nIRQ and nFIQ) of an ARM Processor
Individually maskable and vectored interrupt sources
– Source 0 is reserved for the Fast Interrupt Input (FIQ)
– Source 1 is reserved for system peripherals (RTT, PIT, EFC, PMC, DBGU, etc.)
– Other sources control the peripheral interrupts or external interrupts
– Programmable edge-triggered or level-sensitive internal sources
– Programmable positive/negative edge-triggered or high/low level-sensitive external
sources
8-level Priority Controller
– Drives the normal interrupt nIRQ of the processor
– Handles priority of the interrupt sources
– Higher priority interrupts can be served during service of lower priority interrupt
Vectoring
– Optimizes interrupt service routine branch and execution
– One 32-bit vector register per interrupt source
– Interrupt vector register reads the corresponding current interrupt vector
Protect Mode
– Easy debugging by preventing automatic operations
Fast Forcing
– Permits redirecting any interrupt source on the fast interrupt
General Interrupt Mask
– Provides processor synchronization on events without triggering an interrupt
MCK
periph_clk[2..14]
int
UDPCK
SLCK
MAINCK
PLLCK
Prescaler
/1,/2,/4,...,/64
PCK
Processor
Clock
Controller
Idle Mode
Master Clock Controller
Peripherals
Clock Controller
ON/OFF
USB Clock Controller
ON/OFF
SLCK
MAINCK
PLLCK
Prescaler
/1,/2,/4,...,/64
Programmable Clock Controller
PLLCK
Divider
/1,/2,/4
pck[0..2]
usb_suspend
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