參數(shù)資料
型號: ATMEGA16A-MUR
廠商: Atmel
文件頁數(shù): 21/88頁
文件大?。?/td> 0K
描述: MCU AVR 16KB FLASH 16MHZ 44QFN
產(chǎn)品培訓模塊: megaAVR Introduction
標準包裝: 4,000
系列: AVR® ATmega
核心處理器: AVR
芯體尺寸: 8-位
速度: 16MHz
連通性: I²C,SPI,UART/USART
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 16KB(8K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-VFQFN 裸露焊盤
包裝: 帶卷 (TR)
12
8154B–AVR–07/09
ATmega16A
Figure 6-3.
The X-, Y-, and Z-registers
In the different addressing modes these address registers have functions as fixed displacement,
automatic increment, and automatic decrement (see the Instruction Set Reference for details).
6.5
Stack Pointer
The Stack is mainly used for storing temporary data, for storing local variables and for storing
return addresses after interrupts and subroutine calls. Note that the Stack is implemented as
growing from higher to lower memory locations. The Stack Pointer Register always points to the
top of the Stack. The Stack Pointer points to the data SRAM Stack area where the Subroutine
and Interrupt Stacks are located. A Stack PUSH command will decrease the Stack Pointer.
The Stack in the data SRAM must be defined by the program before any subroutine calls are
executed or interrupts are enabled. Initial Stack Pointer value equals the last address of the
internal SRAM and the Stack Pointer must be set to point above start of the SRAM, see Figure
See Table 6-1 for Stack Pointer details.
The AVR Stack Pointer is implemented as two 8-bit registers in the I/O space. The number of
bits actually used is implementation dependent. Note that the data space in some implementa-
tions of the AVR architecture is so small that only SPL is needed. In this case, the SPH Register
will not be present.
6.5.1
SPH and SPL – Stack Pointer High and Low Register
15
XH
XL
0
X - register
70
7
0
R27 ($1B)
R26 ($1A)
15
YH
YL
0
Y - register
70
7
0
R29 ($1D)
R28 ($1C)
15
ZH
ZL
0
Z - register
70
7
0
R31 ($1F)
R30 ($1E)
Table 6-1.
Stack Pointer instructions
Instruction
Stack pointer
Description
PUSH
Decremented by 1
Data is pushed onto the stack
CALL
ICALL
RCALL
Decremented by 2
Return address is pushed onto the stack with a subroutine call or
interrupt
POP
Incremented by 1
Data is popped from the stack
RET
RETI
Incremented by 2
Return address is popped from the stack with return from
subroutine or return from interrupt
Bit
1514131211
10
9
8
SP15
SP14
SP13
SP12
SP11
SP10
SP9
SP8
SPH
相關PDF資料
PDF描述
ATMEGA32U2-MUR MCU AVR 32K FLASH 16MHZ 32VQFN
ATMEGA32U2-AUR MCU AVR 32K FLASH 16MHZ 32TQFP
CPC7232KTR IC ANALOG SWITCH 8CH HV 48-LQFP
ATMEGA168V-10AUR MCU AVR 16KB FLASH 10MHZ 32TQFP
ATMEGA168-20MUR MCU AVR 16KB FLASH 20MHZ 32QFN
相關代理商/技術參數(shù)
參數(shù)描述
ATMEGA16A-PU 功能描述:8位微控制器 -MCU 16KB In-system Flash 2.7V - 5.5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
ATMEGA16HVA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K/16K Bytes In-System Programmable Flash
ATMEGA16HVA-4CKU 功能描述:8位微控制器 -MCU 16KB Flash Memory 1.8V - 9.0V Supply RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
ATMEGA16HVA-4CKUR 功能描述:8位微控制器 -MCU AVR batman 16KB FLSH 4 MHZ,LGA,GRN1.8-9V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
ATMEGA16HVA-4TU 功能描述:8位微控制器 -MCU 16KB Flash Memory 1.8V - 9.0V Supply RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT