參數(shù)資料
型號: ADUC7032BSTZ-88
廠商: Analog Devices Inc
文件頁數(shù): 118/120頁
文件大?。?/td> 0K
描述: IC MCU 96K FLASH DUAL 48LQFP
標(biāo)準(zhǔn)包裝: 1
系列: MicroConverter® ADuC7xxx
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 20.48MHz
連通性: LIN,SPI,UART/USART
外圍設(shè)備: POR,PSM,溫度傳感器,WDT
輸入/輸出數(shù): 9
程序存儲器容量: 96KB(48K x 16)
程序存儲器類型: 閃存
RAM 容量: 1.5K x 32
電壓 - 電源 (Vcc/Vdd): 3.5 V ~ 18 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 2x16b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 105°C
封裝/外殼: 48-LQFP
包裝: 托盤
ADuC7032-8L
Rev. A | Page 97 of 120
UART SERIAL INTERFACE
The ADuC7032-8L features a 16,450-compatible UART. The
UART is a full-duplex universal asynchronous receiver/
transmitter that performs serial-to-parallel conversion on data
characters received from a peripheral device or a modem, and
parallel-to-serial conversion on data characters received from
the ARM7TDMI. The UART features a fractional divider, which
facilitates high accuracy baud rate generation, and a network
addressable mode. The UART functionality is made available on
GPIO_5 and GPIO_6 (RxD and TxD) of the ADuC7032-8L.
The serial communication adopts an asynchronous protocol
that supports various word length, stop bits, and parity
generation options selectable in the configuration register.
BAUD RATE GENERATION
The ADuC7032-8L features two methods of generating the
UART baud rate.
Normal 450 UART baud rate generation
ADuC7032-8L fractional divider
These two methods are explained in detail in the Normal 450
Normal 450 UART Baud Rate Generation
The baud rate is a divided version of the core clock using the
value in COMDIV0 and COMDIV1 MMRs (16-bit value, DL).
DL
Rate
d
Bau
CD
×
=
2
16
2
MHz
48
.
20
Table 79 lists common baud rate values.
Table 79. Baud Rate Using the Standard Baud Rate Generator
Baud Rate
CD
DL
Actual
Baud Rate
% Error
9600
0
0x43
9552
0.50
19,200
0
0x21
19,394
1.01
115,200
0
0x6
106,667
7.41
9600
3
0x8
10,000
4.17
19,200
3
0x4
20,000
4.17
115,200
3
0x1
80,000
30.56
ADuC7032-8L Fractional Divider
The fractional divider combined with the normal baud rate
generator allows the generation of accurate, high speed baud rates.
/2
/(M+N/2048)
/16DL
UART
CORE
CLOCK
FBEN
0
598
6-
0
37
Figure 39. Fractional Divider Baud Rate Generation
Calculation of the baud rate using a fractional divider follows:
)
2048
(
2
16
2
MHz
48
.
20
N
M
DL
Rate
Baud
CD
+
×
=
2
16
2
MHz
48
.
20
2048
×
=
+
DL
Rate
Baud
N
M
CD
Table 80 shows some common baud rate values.
Table 80. Baud Rate Using the Fractional Baud Rate Generator
Baud
Rate
CD
DL
M
N
Actual
Baud Rate
% Error
9600
0
0x42
1
21
9598.55
0.015
19,200
0
0x21
1
21
19,197.09
0.015
115,200
0
0x5
1
228
115,177.51
0.0195
UART REGISTER DEFINITIONS
The UART interface consists of the following 10 registers:
COMTX: 8-bit transmit register
COMRX: 8-bit receive register
COMDIV0: divisor latch (low byte)
COMDIV1: divisor latch (high byte)
COMCON0: line control register
COMCON1: UART control register
COMSTA0: line status register
COMIEN0: interrupt enable register
COMIID0: interrupt identification register
COMDIV2: 16-bit fractional baud divide register
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.
相關(guān)PDF資料
PDF描述
ADUC7032BSTZ-8V-RL IC BATTERY SENSOR PREC 48-LQFP
ADUC7034BCPZ IC MCU FLASH 32K ANLG IO 48LFCSP
ADUC7036CCPZ IC MCU 96K FLASH DUAL 48LFCSP
ADUC7039BCP6Z-RL IC MCU ARM7 BATT SENSER 32LFCSP
ADUC7061BCPZ32 IC MCU 16/32BIT 32KB 32LFCSP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADUC7032BSTZ-88-RL 功能描述:IC MCU 96K FLASH DUAL 48LQFP 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
ADUC7032BSTZ-8L 制造商:Analog Devices 功能描述:FLASH 96K ARM7 TRIPLE 16-BIT ADC LIN IC. - Trays
ADUC7032BSTZ-8L-RL 制造商:Analog Devices 功能描述:FLASH 96K ARM7 TRIPLE 16-BIT ADC LIN IC. - Tape and Reel
ADUC7032BSTZ-8V 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述:
ADUC7032BSTZ-8V-RL 功能描述:IC BATTERY SENSOR PREC 48-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:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C,LIN,SPI,UART/USART,USI 外圍設(shè)備:欠壓檢測/復(fù)位,POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):16 程序存儲器容量:8KB(4K x 16) 程序存儲器類型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:帶卷 (TR)