参数资料
型号: ADUC7032BSTZ-88-RL
厂商: Analog Devices Inc
文件页数: 118/120页
文件大小: 0K
描述: IC MCU 96K FLASH DUAL 48LQFP
标准包装: 2,000
系列: MicroConverter® ADuC7xxx
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 20.48MHz
连通性: LIN,SPI,UART/USART
外围设备: POR,PSM,温度传感器,WDT
输入/输出数: 9
程序存储器容量: 96KB(48K x 16)
程序存储器类型: 闪存
RAM 容量: 1.5K x 32
电压 - 电源 (Vcc/Vdd): 3.5 V ~ 18 V
数据转换器: A/D 2x16b
振荡器型: 内部
工作温度: -40°C ~ 105°C
封装/外壳: 48-LQFP
包装: 带卷 (TR)
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.
相关PDF资料
PDF描述
AT91R40008-66AU-999 IC MCU 32BIT RISC 100LQFP
ADUC7024BSTZ62-RL IC MCU 12BIT 1MSPS UART 64-LQFP
VE-B33-IW-F3 CONVERTER MOD DC/DC 24V 100W
VE-B33-IW-F1 CONVERTER MOD DC/DC 24V 100W
VE-B34-IX-F3 CONVERTER MOD DC/DC 48V 75W
相关代理商/技术参数
参数描述
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 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC7xxx 标准包装:1,500 系列:AVR® ATtiny 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C,LIN,SPI,UART/USART,USI 外围设备:欠压检测/复位,POR,PWM,温度传感器,WDT 输入/输出数:16 程序存储器容量:8KB(4K x 16) 程序存储器类型:闪存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 11x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:20-SOIC(0.295",7.50mm 宽) 包装:带卷 (TR)
ADUC7033 制造商:AD 制造商全称:Analog Devices 功能描述:Integrated Precision Battery Sensor For Automotive