參數(shù)資料
型號(hào): MC705L16CFUE
廠商: Freescale Semiconductor
文件頁數(shù): 126/146頁
文件大?。?/td> 0K
描述: IC MCU 8BIT EPROM 80-QFP
標(biāo)準(zhǔn)包裝: 84
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 2.1MHz
連通性: SPI
外圍設(shè)備: LCD,POR,WDT
輸入/輸出數(shù): 16
程序存儲(chǔ)器容量: 16KB(16K x 8)
程序存儲(chǔ)器類型: OTP
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 80-QFP
包裝: 托盤
Timer System
MC68HC05L16 MC68HC705L16 Data Sheet, Rev. 4.1
80
Freescale Semiconductor
9.2.3 Input Capture Register
Two 8-bit registers, which make up the 16-bit input capture register, are read-only and are used to latch
the value of the free-running counter after the corresponding input capture edge detector senses a
defined transition. The level transition which triggers the counter transfer is defined by the corresponding
input edge bit (IEDG). Reset does not affect the contents of the input capture register.
The result obtained by an input capture will be one more than the value of the free-running counter on the
rising edge of the internal bus clock preceding the external transition. This delay is required for internal
synchronization. Resolution is one count of the free-running counter, which is four internal bus clock
cycles.
The free-running counter contents are transferred to the input capture register on each proper signal
transition regardless of whether the input capture flag (ICF) is set or clear. The input capture register
always contains the free-running counter value that corresponds to the most recent input capture.
After a read of the input capture register ($14) MSB, the counter transfer is inhibited until the LSB ($15)
is also read. This characteristic causes the timer used in the input capture software routine and its
interaction with the main program to determine the minimum pulse period.
A read of the input capture register LSB ($15) does not inhibit the free-running counter transfer since they
occur on opposite edges of the internal bus clock.
NOTE
Since the TCAP pin is shared with the PC3 I/O pin, changing the state of
the PC3 DDR or data register can cause an unwanted TCAP interrupt. This
can be handled by clearing the ICIE bit before changing the configuration
of PC3 and clearing any pending interrupts before enabling ICIE.
9.2.4 Timer Control Register
The TCR is a read/write register containing five control bits. Three bits enable interrupts associated with
the timer status register flags ICF, OCF, and TOF.
ICIE — Input Capture Interrupt Enable
0 = Interrupt disabled
1 = Interrupt enabled
OC1IE — Output Compare 1 Interrupt Enable
0 = Interrupt disabled
1 = Interrupt enabled
TOIE — Timer Overflow Interrupt Enable
0 = Interrupt disabled
1 = Interrupt enabled
Address:
$0012
Bit 7
654321
Bit 0
Read:
ICIE
OC1IE
TOIE
0
IEDG
OLVL
Write:
Reset:
000000
U
0
U = Unaffected
Figure 9-3. Timer Control Register (TCR)
相關(guān)PDF資料
PDF描述
MC705X32VFUE IC MCU 8BIT 32K FLASH 64-QFP
MC711P2CFNE3 IC MCU 8BIT 84-PLCC
MC7410VU450NE IC MPU RISC 32BIT 360-FCCBGA
MC7447AVU1333LB IC MPU RISC 32BIT 360-BGA
MC7448VS600ND IC MPU RISC 600MHZ 360-FCCLGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC705P6ACDWE 功能描述:8位微控制器 -MCU MCU 176 BYTES RAM A/D 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
MC705P6ACDWE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
MC705P6ACDWER 功能描述:IC MCU 8BIT EPROM 28-SOIC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 標(biāo)準(zhǔn)包裝:1 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(shè)備:欠壓檢測(cè)/復(fù)位,POR,PWM,WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB(16K x 16) 程序存儲(chǔ)器類型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K 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 ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱:ATMEGA324P-B15AZCT
MC705P6ACPE 功能描述:8位微控制器 -MCU HC705P6A 176 BYTES RAM 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
MC705P6AMDWE 功能描述:8位微控制器 -MCU MCU 176 BYTES RAM EPP 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT