參數(shù)資料
型號: ADUC7129BSTZ126
廠商: Analog Devices Inc
文件頁數(shù): 43/92頁
文件大小: 0K
描述: IC DAS MCU ARM7 ADC/DDS 80-LQFP
產(chǎn)品培訓(xùn)模塊: Direct Digital Synthesis Tutorial Series (1 of 7): Introduction
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: 41.78MHz
連通性: EBI/EMI,I²C,SPI,UART/USART
外圍設(shè)備: PLA,POR,PWM,PSM,溫度傳感器,WDT
輸入/輸出數(shù): 38
程序存儲器容量: 126KB(63K x 16)
程序存儲器類型: 閃存
RAM 容量: 8K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 10x12b; D/A 1x10b
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
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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