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STPM32 数据表(PDF) 109 Page - STMicroelectronics

部件名 STPM32
功能描述  ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA
PDF  121 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STPM32 数据表(HTML) 109 Page - STMicroelectronics

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DS10272 Rev 8
109/121
STPM32, STPM33, STPM34
Register map
121
10.3
UART/SPI registers
24
V2 status
Secondary voltage sigma-delta bitstream stuck
0
25
Secondary voltage period error
0
26
Secondary voltage sag detected
0
27
Secondary voltage sag end
0
28
Secondary voltage swell detected
0
29
Secondary voltage swell end
0
30
Tamper
Tamper on secondary
0
31
Tamper or wrong connection
0
Table 61. Row 17, DSP status register 2 (DSP_SR2) (continued)
Bit
Internal signal
Description
Default
Table 62. Row 18, UART/SPI control register 1 (US_REG1)
Bit
Internal signal
Description
Default
[7:0]
CRCpolynomial
UART/SPI polynomial for CRC calculus (SMBus default
polynomial used: x8+x2+x+1)
0x07
8
Noise detection
enable
UART noise immunity feature enabled
0x0
9
Break on error
UART break feature enabled
0x0
[13:10] -
Reserved
0x0
14
CRCenable
8-bit CRC enable (5th packet required in each transmission)
0x1
15
LSBfirst
0: big-endian, 1: little-endian
0x0
[23:16] Time out
Time out (ms)
0x0
[31:24] -
Reserved
0x0
Table 63. Row 19, UART/SPI control register 2 (US_REG2)
Bit
Internal signal
Description
Default
[15:0] Baud rate
Defaulted to 9600 baud
0x683
[23:16] Frame delay
Frame delay
0x0
[31:24] -
Reserved
0x0



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