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参数资料
| 型号： | ADC0844 |
| 厂商： | National Semiconductor Corporation |
| 元件分类： | 串行ADC |
| 英文描述： | 8-Bit uP Compatible A/D Converters with Multiplexer Options |
| 中文描述： | 8位的兼容的A / D转换器和多路复用器选项 |
| 文件页数： | 16/20页 |
| 文件大小： | 467K |
| 代理商： | ADC0844 |
Applications Information
(Continued)
SAMPLE PROGRAM FOR ADC0844— INS8039 INTERFACE
CONVERTING TWO RATIOMETRIC, DIFFERENTIAL SIGNALS
ORG
JMP
ORG
MOV
0H
BEGIN
10H
R1,
#
0FFH
0000
04 10
;START PROGRAM AT ADDR 10
;MAIN PROGRAM
;LOAD R1 WITH A UNUSED ADDR
;LOCATION
;A/D DATA ADDRESS
;SET PORT 1 OUTPUTS HIGH
;LOAD THE ACC WITH A/D MUX DATA
;CH1 AND CH2 DIFFERENTIAL
;CALL THE CONVERSION SUBROUTINE
;LOAD THE ACC WITH A/D MUX DATA
;CH3 AND CH4 DIFFERENTIAL
;INCREMENT THE A/D DATA ADDRESS
;CALL THE CONVERSION SUBROUTINE
0010
B9 FF
BEGIN:
0012
0014
0016
B8 20
89 FF
23 00
MOV
ORL
MOV
R0,
#
20H
P1,
#
0FFH
A,00H
0018
001A
14 50
23 02
CALL
MOV
CONV
A,
#
02H
001C
001D
18
14 50
INC
CALL
R0
CONV
;CONTINUE MAIN PROGRAM
;CONVERSION SUBROUTINE
;ENTRY:ACC— A/D MUX DATA
;EXIT: ACC— CONVERTED DATA
ORG
ANL
MOVX
IN
50H
P1,
#
0FEH
@
R1,A
A,P1
0050
0052
0053
99 FE
91
09
CONV:
;CHIP SELECT THE A/D
;LOAD A/D MUX & START CONVERSION
;INPUT INTR STATE
LOOP:
ADC0844— INS8039 Interface
DS005016-27
www.national.com
16
相关PDF资料 |
PDF描述 |
|---|---|
| ADC0844BCN | 8-Bit uP Compatible A/D Converters with Multiplexer Options |
| ADC0844CCJ | 8-Bit uP Compatible A/D Converters with Multiplexer Options |
| ADC0844CCN | 8-Bit uP Compatible A/D Converters with Multiplexer Options |
| ADC0848 | 8-Bit uP Compatible A/D Converters with Multiplexer Options |
| ADC0848BCN | 8-Bit uP Compatible A/D Converters with Multiplexer Options |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADC0844BCJ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:IC-8-BIT ADC |
| ADC0844BCJ/A+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0844BCN | 制造商:National Semiconductor Corporation 功能描述:Analog Digital Converter, Single, 8 Bit, 20 Pin, DIP |
| ADC0844BCN/A+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0844BCN/B+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
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