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| 型號： | AS8501-ASOU |
| 廠商： | ams |
| 文件頁數(shù)： | 8/41頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DATA ACQ 16-SOIC |
| 特色產(chǎn)品： | AS8501 High Precision Data Acquisition Ics |
| 標準包裝： | 46 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 輸入類型： | 模擬，數(shù)字 |
| 輸出類型： | 模擬，數(shù)字 |
| 接口： | 串行 |
| 電流 - 電源： | 5mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 803 (CN2011-ZH PDF) |
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AS8501 - Data Sheet
austriamicrosystems
Revision 1.1, 04-April-06
www.austriamicrosystems.com
Page 15 of 40
Modes of operation, register OPM
Mode
Name
Description
mo3
mo2
mo1
mo0
0
MZL
Power on, loading from Zener-Zap
memory
0
1
MMS
Single measurement
0
1
2
MMD
Double measurement
(A,B,A,B …)
0
1
0
3
MWU
Wake-up
0
1
4
MAM
Alarm
0
1
0
5
MZP
Zener program/read
0
1
0
1
6
MPD
Power down
0
1
0
7
MSI
0
1
8-15
Reserved for testing
1)
1
x
Notes:
1)
Register addresses 12, 13, 14 and 15 are reserved for testing and future options; operations on these
registers must be avoided
7.5
Register description
In the following sections the register contents and their functions are described in detail. Since the length of some
registers is too long to present clearly, the registers are logically subdivided according to their functions and described
separately.
All internal functions are controlled by the contents of these registers which can be reloaded via the serial SDI interface at
any time. The AS8501 contains the following registers:
REGISTER
ADDRESS
SIZE
Contents
Detailled description see
OPM
0
4
Operating mode register
7.5.1
CRA
1
17
Measurement A configuration register
7.5.3
CRB
2
17
Measurement B configuration register
7.5.4
CRG
3
28
General configuration register
7.5.2
MSR
4
18
Measurement result register
7.5.9
ZZR
5
188
Zener-Zap register
7.5.5
CAR
6
110
Calibration register
7.5.6
TRR
7
20
Trimming register
7.5.7
THR
8
17
Alarm or wake-up threshold register
7.5.8
CFG
9
20
Test and special configuration register
1)
reserved
10-12
Test registers
Note: 1)
This register is reserved for testing modes. Writing is possible only in mode 8. In order to assure
stable conditions in power-down modes MWU(3), MPD(6), TMSS(8) and MSI(13) the default
setting of the CFG register must be changed to x00003. It is not necessary to change this value
during normal operation.
Write commands not supported in a certain mode can be released immediately after the register address. The ASSP will
resume operation with the next start condition. Registers CAR and TRR are not buffered. Any read operation of the CAR
or TRR register may generate transients in the analog circuitry; further accurate measurements require a delay time for
settling.
ams
AG
Technical
content
still
valid
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