参数资料
型号: ADUC7129BSTZ126-RL
厂商: Analog Devices Inc
文件页数: 43/92页
文件大小: 0K
描述: IC DAS MCU ARM7 ADC/DDS 80-LQFP
产品培训模块: ARM7 Applications & Tools
Intro to ARM7 Core & Microconverters
Process Control
Direct Digital Synthesis Tutorial Series (1 of 7): Introduction
标准包装: 1
系列: MicroConverter® ADuC7xxx
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 41.78MHz
连通性: EBI/EMI,I²C,SPI,UART/USART
外围设备: PLA,POR,PWM,PSM,温度传感器,WDT
输入/输出数: 38
程序存储器容量: 126KB(63K x 16)
程序存储器类型: 闪存
RAM 容量: 8K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 10x12b; D/A 1x10b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 80-LQFP
包装: 标准包装
其它名称: ADUC7129BSTZ126-RLDKR
ADuC7128/ADuC7129
Rev. 0 | Page 48 of 92
Comparator Interface
The comparator interface consists of a 16-bit MMR, CMPCON, described in Table 57.
Table 57. CMPCON MMR Bit Designations
Bit
Value
Name
Description
15:11
Reserved.
10
CMPEN
Comparator Enable Bit.
Set by user to enable the comparator.
Cleared by user to disable the comparator.
Note: A comparator interrupt is generated on the enable of the comparator. This should be cleared in the
user software.
Comparator Negative Input Select Bits.
00
AVDD/2.
01
ADC3 input.
10
VREF × 0.6.
9:8
11
CMPIN
Reserved.
Comparator Output Configuration Bits.
00
IRQ and PLA connections disabled.
01
IRQ and PLA connections disabled.
10
PLA connections enabled.
7:6
11
CMPOC
IRQ connections enabled.
5
CMPOL
Comparator Output Logic State Bit.
When low, the comparator output is high when the positive input (CMP0) is above the negative
input (CMP1).
When high, the comparator output is high when the positive input is below the negative input.
Response Time.
00
5 μs response time typical for large signals (2.5 V differential).
17 μs response time typical for small signals (0.65 mV differential).
01
Reserved.
10
Reserved.
4:3
11
CMPRES
3 μs response time typical for any signal type.
2
CMPHYST
Comparator Hysteresis Bit.
Set by user to have a hysteresis of about 7.5 mV.
Cleared by user to have no hysteresis.
1
CMPORI
Comparator Output Rising Edge Interrupt.
Set automatically when a rising edge occurs on the monitored voltage (CMP0).
Cleared by user by writing a 1 to this bit.
0
CMPOFI
Comparator Output Falling Edge Interrupt.
Set automatically when a falling edge occurs on the monitored voltage (CMP0).
Cleared by user.
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