- 您现在的位置：买卖IC网 > PDF目录132965 > MC68HC711EA9CFS2 (FREESCALE SEMICONDUCTOR INC) 8-BIT, UVPROM, 2 MHz, MICROCONTROLLER, CQCC52 PDF资料下载
参数资料
| 型号： | MC68HC711EA9CFS2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, UVPROM, 2 MHz, MICROCONTROLLER, CQCC52 |
| 封装： | WINDOWED, CERAMIC, LCC-52 |
| 文件页数： | 37/58页 |
| 文件大小： | 583K |
| 代理商： | MC68HC711EA9CFS2 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页当前第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页
MOTOROLA
MC68HC11EA9
42
MC68HC11EA9TS/D
7.3 Real-Time Interrupt
The real-time interrupt (RTI) function can generate interrupts at different fixed periodic rates. These
rates are a function of the MCU oscillator frequency and the value of the software-accessible control
bits, RTR1 and RTR0. These bits determine the rate at which interrupts are requested by the RTI sys-
tem. The RTI system is driven by an E divided by 213 rate clock compensated so that it is independent
of the timer prescaler. The RTR1 and RTR0 control bits select an additional division factor. RTI is set
to its fastest rate by default out of reset and can be changed at any time.
TOF — Timer Overflow Interrupt Flag
Refer to 7.2 Main Timer
RTIF — Real-Time Interrupt Flag
If RTII enable bit is set, this flag is set and an interrupt is generated periodically at the rate determined
by the real-time interrupt rate (RTR[1:0]) bits in PACTL.
0 = No periodic interrupt has occurred since either the RTIF flag bit was last cleared or the RTII
enable bit was set
1 = A periodic interrupt has occurred
PAOVF — Pulse Accumulator Overflow Interrupt Flag
Refer to 7.4 Pulse Accumulator
PAIF — Pulse Accumulator Input Edge Interrupt Flag
Refer to 7.4 Pulse Accumulator
Bits [3:0] — Not Implemented
Always read zero
Table 19 Real-Time Interrupt Rates (Period Length)
Period Length
RTR[1:0]
Selected
E = 1.0 MHz
E = 2.0 MHz
E = 3.0 MHz
0 0
213
÷ E
8.192 ms
4.096 ms
2.731 ms
0 1
214
÷ E
16.384 ms
8.192 ms
5.461 ms
1 0
215
÷ E
32.768 ms
16.384 ms
10.923 ms
1 1
216
÷ E
65.536 ms
32.768 ms
21.845 ms
Table 20 Real-Time Interrupt Rates (Frequency)
Maximum
Maximum Interrupt Frequency
RTR[1:0]
Frequency Possible
E = 1.0 MHz
E = 2.0 MHz
E = 3.0 MHz
0 0
213
÷ E
122.070 Hz
244.141 Hz
366.211 Hz
0 1
214
÷ E
61.035 Hz
122.070 Hz
183.105 Hz
1 0
215
÷ E
30.518 Hz
61.035 Hz
91.553 Hz
1 1
216
÷ E
15.258 Hz
30.518 Hz
45.776 Hz
TFLG2 — Timer Interrupt Flag 2
$1025
BIT 7
654321
BIT 0
TOF
RTIF
PAOVF
PAIF
————
RESET:
00000000
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC711EA9CP3 | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP56 |
| MC68HC711EA9MFN2 | 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQCC52 |
| M30280F8HP-D9 | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80 |
| M306NKME-XXXGP | 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP100 |
| M306NMME-XXXGP | 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP128 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68HC711K4CFN4 | 功能描述:IC MCU 24K OTP 4MHZ 84-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| MC68HC711K4CFNE3 | 制造商:Freescale Semiconductor 功能描述: |
| MC68HC711K4CFNE4 | 制造商:Freescale Semiconductor 功能描述: |
| MC68HC711K4CFU4 | 功能描述:IC MCU 24K 4MHZ EEPROM 80-QFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C，IrDA，LIN，SPI，UART/USART 外围设备:DMA，PDR，POR，PVD，PWM，温度传感器，WDT 输入/输出数:26 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN，36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND |
| MC68HC711KS2CPU4 | 制造商:Motorola Inc 功能描述: |
发布紧急采购，3分钟左右您将得到回复。