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| 型號： | ATMEGA6490V-8AU |
| 廠商： | Atmel |
| 文件頁數(shù)： | 22/30頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AVR MCU FLASH 64K 100TQFP |
| 產(chǎn)品培訓模塊： | MCU Product Line Introduction megaAVR Introduction |
| 標準包裝： | 90 |
| 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 |
| 外圍設備： | 欠壓檢測/復位，LCD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 68 |
| 程序存儲器容量： | 64KB（32K x 16） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 2K x 8 |
| RAM 容量： | 4K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.8 V ~ 5.5 V |
| 數(shù)據(jù)轉換器： | A/D 8x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 100-TQFP |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 611 (CN2011-ZH PDF) |
| 配用： | ATSTK600-RC18-ND - STK600 ROUTING CARD AVR ATSTK600-TQFP100-ND - STK600 SOCKET/ADAPTER 100-TQFP ATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM ATSTK504-ND - STARTER KIT AVR EXP MOD 100P LCD ATJTAGICE2-ND - AVR ON-CHIP D-BUG SYSTEM |
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SC28L92_7
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 07 — 19 December 2007
29 of 73
NXP Semiconductors
SC28L92
3.3 V/5.0 V Dual Universal Asynchronous Receiver/Transmitter
7.3.1.3
Mode Register 2 channel A (MR2A)
2
PARITYTYPE
Channel A parity type select
0 = even
1 = odd
This bit selects the parity type (odd or even) if the with parity mode is
programmed by MR1A[4:3], and the polarity of the forced parity bit if
the force parity mode is programmed. It has no effect if the no parity
mode is programmed. In the special multi-drop mode it selects the
polarity of the A/D bit.
1:0
-
Channel A bits per character select.
00 = 5 bits
01 = 6 bits
10 = 7 bits
11 = 8 bits
This eld selects the number of data bits per character to be
transmitted and received. The character length does not include the
start, parity, and stop bits.
Table 28.
MR1A - Mode Register 1 channel A (address 0x0) bit description …continued
Bit
Symbol
Description
Table 29.
MR2A - Mode Register 2 channel A (address 0x0) bit allocation
MR2A is accessed when the channel A MR pointer points to MR2, which occurs after any access to MR1A. Accesses to
MR2A do not change the pointer.
7
6
5
4
3
2
1
0
channel mode
RTSN
Control Tx
CTSN
Enable Tx
stop bit length
Table 30.
MR2A - Mode Register 2 channel A (address 0x0) bit description
Bit
Symbol
Description
7 and 6
-
Channel A mode select. Each channel of the DUART can operate in one of
the following four modes:
00 = Normal mode (default)
01 = Automatic echo mode
10 = Local loopback mode
11 = Remote loopback mode
Table 31 gives a description of the channel modes
The user must exercise care when switching into and out of the various
modes. The selected mode will be activated immediately upon mode
selection, even if this occurs in the middle of a received or transmitted
character. Likewise, if a mode is deselected the device will switch out of the
mode immediately. An exception to this is switching out of auto echo or
remote loopback modes: if the deselection occurs just after the receiver
has sampled the stop bit (indicated in auto echo by assertion of RxRDY),
and the transmitter is enabled, the transmitter will remain in auto echo
mode until the entire stop has been retransmitted.
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| ATmega649-16AU | 功能描述:8位微控制器 -MCU AVR 64K FLASH 2K EE 4K SRAM ADC LCD 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 |
| ATMEGA649-16AUR | 功能描述:8位微控制器 -MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD16MHz,5V 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 |
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