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參數(shù)資料
| 型號： | PMS430E337AHFD |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | MIXED SIGNAL MICROCONTROLLERS |
| 中文描述： | 混合信號微處理器 |
| 文件頁數(shù)： | 12/30頁 |
| 文件大?。?/td> | 390K |
| 代理商： | PMS430E337AHFD |
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MSP430C33x, MSP430P337A
MIXED SIGNAL MICROCONTROLLERS
SLAS227 – OCTOBER 1999
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
LCD drive
Liquid crystal displays (LCDs) for static, 2-, 3-, and 4-MUX operation can be driven directly. The operation of
the controller LCD logic is defined by software through memory-bit manipulation. LCD memory is part of the LCD
module, not part of data memory. Eight mode and control bits define the operation and current consumption of
the LCD drive. The information for the individual digits can be easily
obtained using table programming
techniques combined with the proper addressing mode. The segment information is stored into LCD memory
using instructions for memory manipulation.
The drive capability is defined by the external resistor divider that supports analog levels for 2-, 3-, and 4-MUX
operation. Groups of the LCD segment lines can be selected for digital output signals. The MSP430x33x
configuration has four common lines, 30 segment lines, and four terminals for adjusting the analog levels.
Basic Timer1
The Basic Timer1 (BT1) divides the frequency of MCLK or ACLK, as selected with the SSEL bit, to provide low
frequency control signals. This is done within the system by one central divider, the Basic Timer1, to support
low current applications. The BTCTL control register contains the flags which control or select the different
operational functions. When the supply voltage is applied or when a reset of the device (RST/NMI pin), a
watchdog overflow, or a watchdog security key violation occurs, all bits in the register hold undefined or
unchanged status. The user software usually configures the operational conditions on the BT during
initialization.
The Basic Timer1 has two eight bit timers which can be cascaded to a sixteen bit timer. Both timers can be read
and written by software. Two bits in the SFR address range handle the system control interaction according to
the function implemented in the Basic Timer1. These two bits are the Basic Timer1 interrupt flag (BTIFG) and
the Basic Timer1 interrupt enable (BTIE) bit.
Watchdog Timer
The primary function of the Watchdog Timer (WDT) module is to perform a controlled system restart after a
software upset has occurred. If the selected time interval expires, a system reset is generated. If this watchdog
function is not needed in an application, the module can work as an interval timer, which generates an interrupt
after the selected time interval.
The Watchdog Timer counter (WDTCNT) is a 15/16-bit upcounter which is not directly accessible by software.
The WDTCNT is controlled using the Watchdog Timer control register (WDTCTL), which is an 8-bit read/write
register. Writing to WDTCTL, in both operating modes (watchdog or timer) is only possible by using the correct
password in the high-byte. The low-byte stores data written to the WDTCTL. The high-byte password is 05Ah.
If any value other than 05Ah is written to the high-byte of the WDTCTL, a system reset PUC is generated. When
the password is read its value is 069h. This minimizes accidental write operations to the WDTCTL register.In
addition to the Watchdog Timer control bits, there are two bits included in the WDTCTL that configure the NMI
pin.
USART
The universal synchronous/asynchronous interface is a dedicated peripheral module which provides serial
communications. The USART supports synchronous SPI (3 or 4 pin), and asynchronous UART
communications protocols, using double buffered transmit and receive channels. Data streams of 7 or 8 bits
in length can be transferred at a rate determined by the program, or by a rate defined by an external clock. Low
power applications are optimized by UART mode options which allow for the receipt of only the first byte of a
complete frame. The applications software then decides if the succeeding data is to be processed. This option
reduces power consumption.
Two dedicated interrupt vectors are assigned to the USART module, one for the receive and one for the transmit
channel.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PMS430E337HFD | 制造商:TI 制造商全稱:Texas Instruments 功能描述:MIXED SIGNAL MICROCONTROLLERS |
| PMS-616005 | 制造商:ADC 功能描述:ADC-PMS |
| PMS8P1B05M2QE | 功能描述:Pushbutton Switch SPDT Standard Panel Mount, Rear 制造商:te connectivity alcoswitch switches 系列:- 包裝:散裝 零件狀態(tài):有效 類型:標(biāo)準(zhǔn) 電路:SPDT 開關(guān)功能:開-瞬時 額定電流:3A（AC/DC） 額定電壓 - AC:120V 額定電壓 - DC:28V 致動器類型:圓形，柱塞 顏色 - 致動器/蓋帽:黑 照明類型，顏色:- 照明電壓（標(biāo)稱值）:- 安裝類型:面板安裝，后部 端子類型:PC 引腳 侵入防護(hù):IP67 - 防塵，防水 特性:密封式 面板開口尺寸:圓形 - 4.95mm 直徑 工作溫度:-30°C ~ 85°C 機(jī)械壽命:50，000 次循環(huán) 電氣壽命:- 標(biāo)準(zhǔn)包裝:100 |
| PMS8P1B09M2RE | 功能描述:Pushbutton Switch SPDT Standard Panel Mount, Rear 制造商:te connectivity alcoswitch switches 系列:- 包裝:散裝 零件狀態(tài):有效 類型:標(biāo)準(zhǔn) 電路:SPDT 開關(guān)功能:開-瞬時 額定電流:0.4VA（AC/DC） 額定電壓 - AC:20V 額定電壓 - DC:20V 致動器類型:圓形，柱塞 顏色 - 致動器/蓋帽:黑 照明類型，顏色:- 照明電壓（標(biāo)稱值）:- 安裝類型:面板安裝，后部 端子類型:PC 引腳 侵入防護(hù):IP67 - 防塵，防水 特性:密封式 面板開口尺寸:圓形 - 6.35mm 直徑 工作溫度:-30°C ~ 85°C 機(jī)械壽命:50，000 次循環(huán) 電氣壽命:- 標(biāo)準(zhǔn)包裝:100 |
| PMS9P1B05M2QE | 功能描述:Pushbutton Switch SPST-NO Standard Panel Mount, Rear 制造商:te connectivity alcoswitch switches 系列:- 包裝:散裝 零件狀態(tài):有效 類型:標(biāo)準(zhǔn) 電路:SPST-NO 開關(guān)功能:關(guān)-瞬時 額定電流:3A（AC/DC） 額定電壓 - AC:120V 額定電壓 - DC:28V 致動器類型:圓形，柱塞 顏色 - 致動器/蓋帽:黑 照明類型，顏色:- 照明電壓（標(biāo)稱值）:- 安裝類型:面板安裝，后部 端子類型:PC 引腳 侵入防護(hù):IP67 - 防塵，防水 特性:密封式 面板開口尺寸:圓形 - 4.95mm 直徑 工作溫度:-30°C ~ 85°C 機(jī)械壽命:50，000 次循環(huán) 電氣壽命:- 標(biāo)準(zhǔn)包裝:100 |
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