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参数资料
| 型号： | MSC1214Y2PAGTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64 |
| 封装： | GREEN, PLASTIC, TQFP-64 |
| 文件页数： | 97/111页 |
| 文件大小： | 1102K |
| 代理商： | MSC1214Y2PAGTG4 |
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MSC1211, MSC1212
MSC1213,MSC1214
SBAS323G JUNE 2004 REVISED OCTOBER 2007
www.ti.com
86
Timer 2 Control (T2CON)
7
6
5
4
3
2
1
0
Reset Value
SFR C8h
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2
CP/RL2
00h
TF2
Timer 2 Overflow Flag. This flag will be set when Timer 2 overflows from FFFFh. It must be cleared by software.
bit 7
TF2 will only be set if RCLK and TCLK are both cleared to ‘0’. Writing a ‘1’ to TF2 forces a Timer 2 interrupt if enabled.
EXF2
Timer 2 External Flag. A negative transition on the T2EX pin (P1.1) will cause this flag to be set based on the EXEN2
bit 6
(T2CON.3) bit. If set by a negative transition, this flag must be cleared to ‘0’ by software. Setting this bit in software
will force a timer interrupt if enabled.
RCLK
Receive Clock Flag. This bit determines the serial Port 0 timebase when receiving data in serial modes 1 or 3.
bit 5
0 = Timer 1 overflow is used to determine receiver baud rate for USART0.
1 = Timer 2 overflow is used to determine receiver baud rate for USART0.
Setting this bit will force Timer 2 into baud rate generation mode. The timer will operate from a divide by 2 of the
external clock.
TCLK
Transmit Clock Flag. This bit determines the serial Port 0 timebase when transmitting data in serial modes 1 or 3.
bit 4
0 = Timer 1 overflow is used to determine transmitter baud rate for USART0.
1 = Timer 2 overflow is used to determine transmitter baud rate for USART0.
Setting this bit will force Timer 2 into baud rate generation mode. The timer will operate from a divide by 2 of the
external clock.
EXEN2
Timer 2 External Enable. This bit enables the capture/reload function on the T2EX pin if Timer 2 is not generating
bit 3
baud rates for the serial port.
0 = Timer 2 will ignore all external events at T2EX.
1 = Timer 2 will capture or reload a value if a negative transition is detected on the T2EX pin.
TR2
Timer 2 Run Control. This bit enables/disables the operation of Timer 2. Halting this timer will preserve the current
bit 2
count in TH2, TL2.
0 = Timer 2 is halted.
1 = Timer 2 is enabled.
C/T2
Counter/Timer Select. This bit determines whether Timer 2 will function as a timer or counter. Independent of this
bit 1
bit, Timer 2 runs at 2 clocks per tick when used in baud rate generator mode.
0 = Timer 2 functions as a timer. The speed of Timer 2 is determined by the T2M bit (CKCON.5).
1 = Timer 2 will count negative transitions on the T2 pin (P1.0).
CP/RL2
Capture/Reload Select. This bit determines whether the capture or reload function will be used for Timer 2. If either
bit 0
RCLK or TCLK is set, this bit will not function and the timer will function in an auto-reload mode following each
overflow.
0 = Auto-reloads will occur when Timer 2 overflows or a falling edge is detected on T2EX if EXEN2 = 1.
1 = Timer 2 captures will occur when a falling edge is detected on T2EX if EXEN2 = 1.
Timer 2 Capture LSB (RCAP2L)
7
6
5
4
3
2
1
0
Reset Value
SFR CAh
00h
RCAP2L
Timer 2 Capture LSB. This register is used to capture the TL2 value when Timer 2 is configured in capture mode.
bits 70
RCAP2L is also used as the LSB of a 16-bit reload value when Timer 2 is configured in auto-reload mode.
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相关代理商/技术参数 |
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| MSC1214Y3 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Precision Analog-to-Digital Converter (ADC) and Digital-to-Analog Converters (DACs) with 8051 Microcontroller and Flash Memory |
| MSC1214Y3PAGR | 功能描述:数据转换系统 Prec A/D & D/A w/ 8051 Mcntrl & Flash RoHS:否 制造商:Texas Instruments 转换速率:0.001 MSPs 分辨率:24 bit 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MSC1214Y3PAGRG4 | 功能描述:数据转换系统 Prec A/D & D/A w/ 8051 Mcntrl & Flash RoHS:否 制造商:Texas Instruments 转换速率:0.001 MSPs 分辨率:24 bit 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MSC1214Y3PAGT | 功能描述:数据转换系统 Prec A/D & D/A w/ 8051 Mcntrl & Flash RoHS:否 制造商:Texas Instruments 转换速率:0.001 MSPs 分辨率:24 bit 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MSC1214Y3PAGTG4 | 功能描述:数据转换系统 Prec A/D & D/A with 8051 MCU and FL Mem RoHS:否 制造商:Texas Instruments 转换速率:0.001 MSPs 分辨率:24 bit 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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