參數(shù)資料
型號: ADUC7027BSTZ62I
廠商: Analog Devices Inc
文件頁數(shù): 74/104頁
文件大?。?/td> 0K
描述: IC MCU FLASH 62K ANLG I2C 80LQFP
產(chǎn)品培訓(xùn)模塊: Process Control
標(biāo)準(zhǔn)包裝: 90
系列: MicroConverter® ADuC7xxx
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 44MHz
連通性: EBI/EMI,I²C,SPI,UART/USART
外圍設(shè)備: PLA,PWM,PSM,溫度傳感器,WDT
輸入/輸出數(shù): 40
程序存儲器容量: 64KB(32K x 16)
程序存儲器類型: 閃存
RAM 容量: 2K x 32
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 80-LQFP
包裝: 托盤
Data Sheet
ADuC7019/20/21/22/24/25/26/27/28/29
Rev. F | Page 71 of 104
The serial communication adopts an asynchronous protocol,
which supports various word lengths, stop bits, and parity
generation options selectable in the configuration register.
Baud Rate Generation
There are two ways of generating the UART baud rate, normal
450 UART baud rate generation and the fractional divider.
Normal 450 UART Baud Rate Generation
The baud rate is a divided version of the core clock using the values
in the COMDIV0 and COMDIV1 MMRs (16-bit value, DL).
DL
×
2
×
16
-
2
MHz
78
.
41
=
Rate
Baud
CD
Table 93 gives some common baud rate values.
Table 93. Baud Rate Using the Normal Baud Rate Generator
Baud Rate
CD
DL
Actual Baud Rate
% Error
9600
0
0x88
9600
0
19,200
0
0x44
19,200
0
115,200
0
0x0B
118,691
3
9600
3
0x11
9600
0
19,200
3
0x08
20,400
6.25
115,200
3
0x01
163,200
41.67
Fractional Divider
The fractional divider, combined with the normal baud rate
generator, produces a wider range of more accurate baud rates.
04955-
032
/16DL
UART
FBEN
CORE
CLOCK
/2
/(M+N/2048)
Figure 75. Baud Rate Generation Options
Calculation of the baud rate using fractional divider is as follows:
+
×
=
2048
2
16
2
MHz
78
.
41
N
M
DL
Rate
Baud
CD
2
×
DL
×
16
×
2
×
Rate
Baud
MHz
78
.
41
=
2048
N
+
M
CD
For example, generation of 19,200 baud with CD bits = 3
(Table 93 gives DL = 0x08) is
2
8
16
2
19200
MHz
78
.
41
2048
3
×
=
+ N
M
06
.
1
2048
=
+ N
M
where:
M = 1
N = 0.06 × 2048 = 128
2048
128
×
2
×
8
×
16
×
2
MHz
78
.
41
=
Rate
Baud
3
where:
Baud Rate = 19,200 bps
Error = 0%, compared to 6.25% with the normal baud rate
generator.
UART Register Definitions
The UART interface consists of 12 registers: COMTX, COMRX,
COMDIV0, COMIEN0, COMDIV1, COMIID0, COMCON0,
COMCON1, COMSTA0, COMSTA1, COMSCR, and
COMDIV2.
Table 94. COMTX Register
Name
Address
Default Value
Access
COMTX
0xFFFF0700
0x00
R/W
COMTX is an 8-bit transmit register.
Table 95. COMRX Register
Name
Address
Default Value
Access
COMRX
0xFFFF0700
0x00
R
COMRX is an 8-bit receive register.
Table 96. COMDIV0 Register
Name
Address
Default Value
Access
COMDIV0
0xFFFF0700
0x00
R/W
COMDIV0 is a low byte divisor latch. COMTX, COMRX,
and COMDIV0 share the same address location. COMTX
and COMRX can be accessed when Bit 7 in the COMCON0
register is cleared. COMDIV0 can be accessed when Bit 7
of COMCON0 is set.
Table 97. COMIEN0 Register
Name
Address
Default Value
Access
COMIEN0
0xFFFF0704
0x00
R/W
COMIEN0 is the interrupt enable register.
Table 98. COMIEN0 MMR Bit Descriptions
Bit
Name
Description
7:4
N/A
Reserved.
3
EDSSI
Modem status interrupt enable bit. Set by
user to enable generation of an interrupt if
any of COMSTA1[3:1] is set. Cleared by user.
2
ELSI
Rx status interrupt enable bit. Set by user to
enable generation of an interrupt if any of
COMSTA0[4:1] is set. Cleared by user.
1
ETBEI
Enable transmit buffer empty interrupt. Set
by user to enable interrupt when buffer is
empty during a transmission. Cleared by user.
0
ERBFI
Enable receive buffer full interrupt. Set by
user to enable interrupt when buffer is full
during a reception. Cleared by user.
相關(guān)PDF資料
PDF描述
VI-J43-IW CONVERTER MOD DC/DC 24V 100W
AT91SAM7XC512-AU-999 IC MCU ARM 512KB FLASH 100LQFP
VI-BTR-IX-F1 CONVERTER MOD DC/DC 7.5V 75W
ATSAM3X4EA-CU IC MCU 2X128KB CORTEX-M3 144-BGA
2220PC684KAT1A CAP CER 0.68UF 250V 10% X7R 2220
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADUC7027BSTZ62I-RL 制造商:Analog Devices 功能描述:
ADUC7027BSTZ62-RL 功能描述:IC MCU 12BIT 1MSPS UART 80-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC7xxx 標(biāo)準(zhǔn)包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA,UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位,LED,POR,PWM,WDT 輸入/輸出數(shù):16 程序存儲器容量:4KB(4K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
ADUC7028BBCZ62 功能描述:IC MCU FLASH 62K 12BIT RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC7xxx 標(biāo)準(zhǔn)包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA,UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位,LED,POR,PWM,WDT 輸入/輸出數(shù):16 程序存儲器容量:4KB(4K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
ADUC7028BBCZ62-RL 功能描述:IC MCU FLASH 62K 12BIT RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC7xxx 標(biāo)準(zhǔn)包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA,UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位,LED,POR,PWM,WDT 輸入/輸出數(shù):16 程序存儲器容量:4KB(4K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
ADUC7029BBCZ62 功能描述:IC MCU 12BIT 62KB FLASH 49BGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC7xxx 產(chǎn)品培訓(xùn)模塊:MCU Product Line Introduction XMEGA Introduction AVR XMEGA USB Connectivity 標(biāo)準(zhǔn)包裝:90 系列:AVR® XMEGA 核心處理器:AVR 芯體尺寸:8/16-位 速度:32MHz 連通性:I²C,IrDA,SPI,UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位,DMA,POR,PWM,WDT 輸入/輸出數(shù):50 程序存儲器容量:192KB(96K x 16) 程序存儲器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:16K x 8 電壓 - 電源 (Vcc/Vdd):1.6 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 16x12b; D/A 2x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:64-TQFP 包裝:托盤 配用:ATSTK600-RC14-ND - STK600 SOCKET/ADAPTER 64TQFPATSTK600-TQFP64-ND - STK600 SOCKET/ADAPTER 64-TQFPATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMRATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM