參數(shù)資料
型號: AT90S1200-12PC
廠商: Atmel
文件頁數(shù): 2/71頁
文件大小: 0K
描述: IC MCU 1K FLSH 12MHZ 20DIP
標(biāo)準(zhǔn)包裝: 18
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 12MHz
連通性: SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 15
程序存儲器容量: 1KB(512 x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 64 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 20-DIP(0.300",7.62mm)
包裝: 管件
10
AT90S1200
0838H–AVR–03/02
I/O Memory
The I/O space definition of the AT90S1200 is shown in the following table.
Note:
Reserved and unused locations are not shown in the table.
All AT90S1200 I/Os and peripherals are placed in the I/O space. The different I/O loca-
tions are accessed by the IN and OUT instructions transferring data between the 32
general purpose working registers and the I/O space. I/O registers within the address
range $00 - $1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instruc-
tions. Refer to the instruction set chapter for more details.
For compatibility with future devices, reserved bits should be written to zero if accessed.
Reserved I/O memory addresses should never be written.
Some of the status flags are cleared by writing a logical one to them. Note that the CBI
and SBI instructions will operate on all bits in the I/O register, writing a one back into any
flag read as set, thus clearing the flag. The CBI and SBI instructions work with registers
$00 to $1F only.
The different I/O and peripherals control registers are explained in the following
sections.
Table 1. The AT90S1200 I/O Space
Address Hex
Name
Function
$3F
SREG
Status REGister
$3B
GIMSK
General Interrupt MaSK register
$39
TIMSK
Timer/Counter Interrupt MaSK register
$38
TIFR
Timer/Counter Interrupt Flag register
$35
MCUCR
MCU general Control Register
$33
TCCR0
Timer/Counter0 Control Register
$32
TCNT0
Timer/Counter0 (8-bit)
$21
WDTCR
Watchdog Timer Control Register
$1E
EEAR
EEPROM Address Register
$1D
EEDR
EEPROM Data Register
$1C
EECR
EEPROM Control Register
$18
PORTB
Data Register, Port B
$17
DDRB
Data Direction Register, Port B
$16
PINB
Input Pins, Port B
$12
PORTD
Data Register, Port D
$11
DDRD
Data Direction Register, Port D
$10
PIND
Input Pins, Port D
$08
ACSR
Analog Comparator Control and Status Register
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AT90S1200-12YC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 1K Byte of In-System Programmable Flash
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