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| 型號： | ATMEGA329V-8MI |
| 廠商： | Atmel |
| 文件頁數(shù)： | 24/30頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AVR MCU 32K 8MHZ 64-QFN |
| 產(chǎn)品培訓模塊： | megaAVR Introduction |
| 標準包裝： | 260 |
| 系列： | AVR® ATmega |
| 核心處理器： | AVR |
| 芯體尺寸： | 8-位 |
| 速度： | 8MHz |
| 連通性： | SPI，UART/USART，USI |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，LCD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 54 |
| 程序存儲器容量： | 32KB（16K x 16） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 1K x 8 |
| RAM 容量： | 2K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.8 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 ~ 85°C |
| 封裝/外殼： | 64-VFQFN 裸露焊盤 |
| 包裝： | 托盤 |
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SC28L92_7
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 07 — 19 December 2007
30 of 73
NXP Semiconductors
SC28L92
3.3 V/5.0 V Dual Universal Asynchronous Receiver/Transmitter
5
-
Channel A transmitter Request To Send (RTS) control.
0 = No RTS control
1 = RTS control
This bit controls the deactivation of the RTSAN output (OP0) by the
transmitter. This output is normally asserted by setting OPR[0] and
negated by resetting OPR[0]. MR2A[5] = 1 caused OPR[0] to be reset
automatically one bit time after the characters in the channel A transmit
shift register and in the Tx FIFO, if any, are completely transmitted
including the programmed number of stop bits, if the transmitter is not
enabled
This feature can be used to automatically terminate the transmission of a
message as follows (line turnaround):
1. Program auto-reset mode: MR2A[5] = 1
2. Enable transmitter
3. Assert RTSAN: OPR[0] = 1
4. Send message
5. Disable transmitter after the last character is loaded into the channel A
Tx FIFO
6. The last character will be transmitted and OPR[0] will be reset one bit
time after the last stop bit, causing RTSAN to be negated
4
-
Channel A transmitter Clear To Send (CTS) control.
0 = Input CTSAN(IP0) has no effect on the transmitter
1 = CTS control enabled
If this bit is a 1, the transmitter checks the state of CTSAN (IP0) each time
it is ready to send a character. If IP0 is asserted (LOW), the character is
transmitted. If it is negated (HIGH), the TxDA output remains in the
marking state and the transmission is delayed until CTSAN goes LOW.
Changes in CTSAN while a character is being transmitted do not affect the
transmission of that character.
3 to 0
-
Stop bit length select. This eld programs the length of the stop bit
appended to the transmitted character. Stop bit lengths of 9
16 to 1 and
1
9
16 to 2 bits, in increments of
1
16 bit, can be programmed for character
lengths of 6, 7, and 8 bits. For a character lengths of 5 bits, 1
1
16 to 2
stop bits can be programmed in increments of 1
16 bit. In all cases, the
receiver only checks for a mark condition at the center of the stop bit
position (one half-bit time after the last data bit, or after the parity bit if
enabled is sampled). Refer to Table 32 for the values.
If an external 1
× clock is used for the transmitter:
MR2A[3] = 0 selects one stop bit
MR2A[3] = 1 selects two stop bits
Table 30.
MR2A - Mode Register 2 channel A (address 0x0) bit description …continued
Bit
Symbol
Description
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| ATmega329V-8MU | 功能描述:8位微控制器 -MCU AVR 16K FLASH 1K EE 2K SRAM LCD ADC 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| ATMEGA329V-8MUR | 功能描述:8位微控制器 -MCU AVR 32KB FLSH 1KB EE 2KB SRAM-8MHZ 1.8V 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| ATMEGA32A | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 32K Bytes In-System Programmable Flash |
| ATMEGA32A_09 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 32K Bytes In-System Programmable Flash |
| ATMEGA32A_1 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 32K Bytes In-System Programmable Flash |
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