参数资料
型号: MB9AF314NBGL
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PBGA112
封装: 0.80 MM PITCH, PLASTIC, FBGA-112
文件页数: 5/114页
文件大小: 1357K
代理商: MB9AF314NBGL
ATmega48PA/88PA/168PA [DATASHEET]
9223F–AVR–04/14
102
The following code examples show how to do an atomic write of the TCNT1 register contents. Writing any of the OCR1A/B
or ICR1 registers can be done by using the same principle.
The assembly code example requires that the r17:r16 register pair contains the value to be written to TCNT1.
16.3.1 Reusing the Temporary High Byte Register
If writing to more than one 16-bit register where the high byte is the same for all registers written, then the high byte only
needs to be written once. However, note that the same rule of atomic operation described previously also applies in this
case.
16.4
Timer/Counter Clock Sources
The Timer/Counter can be clocked by an internal or an external clock source. The clock source is selected by the clock
select logic which is controlled by the clock select (CS12:0) bits located in the Timer/Counter control register B (TCCR1B).
Assembly Code Example(1)
TIM16_WriteTCNT
1:
; Save global interrupt flag
in
r18,SREG
; Disable interrupts
cli
; Set TCNT
1 to r17:r16
out
TCNT
1H,r17
out
TCNT
1L,r16
; Restore global interrupt flag
out
SREG,r18
ret
C Code Example(1)
void
TIM16_WriteTCNT
1( unsigned int i )
{
unsigned char
sreg;
unsigned int
i;
/* Save global interrupt flag */
sreg = SREG;
/* Disable interrupts */
_CLI();
/* Set TCNT
1 to i */
TCNT
1 = i;
/* Restore global interrupt flag */
SREG = sreg;
}
Note:
1.
For I/O registers located in extended I/O map, “IN”, “OUT”, “SBIS”, “SBIC”, “CBI”, and “SBI” instructions
must be replaced with instructions that allow access to extended I/O. Typically “LDS” and “STS” combined
with “SBRS”, “SBRC”, “SBR”, and “CBR”.
相关PDF资料
PDF描述
MB9BF418SPMC RISC MICROCONTROLLER, PQFP144
M38802M1-XXXFS 8-BIT, MROM, 8 MHz, MICROCONTROLLER, CQCC64
MAQ281CE 16-BIT, MICROPROCESSOR, DMA64
MAS281CS 16-BIT, MICROPROCESSOR, DMA64
M37730S2ASP 16-BIT, 16 MHz, MICROCONTROLLER, PDIP64
相关代理商/技术参数
参数描述
MB9AF314NBGL-GE1 制造商:FUJITSU 功能描述: 制造商:FUJITSU 功能描述:MCU 32BIT CORTEX-M3 FM3 112BGA 制造商:FUJITSU 功能描述:MCU, 32BIT, CORTEX-M3, FM3, 112BGA 制造商:FUJITSU 功能描述:MCU, 32BIT, CORTEX-M3, FM3, 112BGA, Controller Family/Series:ARM Cortex-M3, Core 制造商:FUJITSU 功能描述:MCU, 32BIT, CORTEX-M3, FM3, 112BGA, Controller Family/Series:ARM Cortex-M3, Core Size:32bit, No. of I/O's:83, Supply Voltage Min:2.7V, Supply Voltage Max:5.5V, Digital IC Case Style:BGA, No. of Pins:112, Program Memory Size:256KB, , RoHS Compliant: Yes
MB9AF314NPMC-GE1 制造商:FUJITSU 功能描述:
MB9AF314NPMC-G-JNE1 制造商:FUJITSU 功能描述: 制造商:FUJITSU 功能描述:MCU 32BIT CORTEX-M3 FM3 100LQFP 制造商:FUJITSU 功能描述:MCU, 32BIT, CORTEX-M3, FM3, 100LQFP, Controller Family/Series:ARM Cortex-M3, Cor
MB9AF316MAPMC-G-JNE2 制造商:Fujitsu 功能描述:Bulk
MB9AF316MPMC-G-JNE1 制造商:FUJITSU 功能描述:MCU 32BIT CORTEX-M3 FM3 80LQFP 制造商:FUJITSU 功能描述:MCU, 32BIT, CORTEX-M3, FM3, 80LQFP, Controller Family/Series:ARM Cortex-M3, Core