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STPM34 Datasheet(PDF) 60 Page - STMicroelectronics

Part # STPM34
Description  ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA
PDF  89 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPM34 Datasheet(HTML) 60 Page - STMicroelectronics

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10
Register map
There are three types of data register:
•
RW: read and written by application (in yellow in the pictures below)
•
RWL: the status bits, set from DSP, must be latched to read updated content, and must be cleared by the
application (in blue in the pictures below)
•
RL: read registers only, they contain measured data and are continuously updated by DSP, so they need to
be latched before reading (in blue in the pictures below).
The following nomenclature is used in the above registers:
•
A: active wideband
•
F: active fundamental
•
R: reactive
•
S: apparent
10.1
Register map graphical representation
Figure 54. Register map 1
STPM32, STPM33, STPM34
Register map
DS10272 - Rev 13
page 60/89



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