71M6545 Datasheet, PDF (96/134 Pages) Maxim Integrated Products – Four-Quadrant Metering, Phase Metrology Processors Flash/RAM Size

Data Sheet 71M6545/H
PDS_6545_009
Name
SPI_STAT
STEMP[10:3]
STEMP[2:0]
SUM_SAMPS[12:8]
SUM_SAMPS[7:0]
TBYTE_BUSY
TEMP_22[10:8]
TEMP_22[7:0]
TEMP_BAT
Reserved
TEMP_PER[2:0]
TEMP_PWR
96
Location
2708[7:0]
2881[7:0]
2882[7:5]
2107[4:0]
2108[7:0]
28A0[3]
230A[2:0]
230B[7:0]
28A0[4]
28A0[7]
28A0[2:0]
28A0[6]
Rst Wk Dir Description
SPI_STAT contains the status results from the previous SPI transaction
Bit 7 - 71M6545/H ready error: the 71M6545/H was not ready to read or write as
directed by the previous command.
Bit 6 - Read data parity: This bit is the parity of all bytes read from the 71M6545/H in
the previous command. Does not include the SPI_STAT byte.
0 0 R ^{Bit 5 - Write data parity: This bit is the overall parity of the bytes written to the}
71M6545/H in the previous command. It includes CMD and ADDR bytes.
Bit 4:2 - Bottom 3 bits of the byte count. Does not include ADDR and CMD bytes.
One, two, and three byte instructions return 111.
Bit 1 - SPI FLASH mode: This bit is zero when the TEST pin is zero.
Bit 0 - SPI FLASH mode ready: Used in SPI FLASH mode. Indicates that the flash is ready to
receive another write instruction.
– – R The result of the temperature measurement.
–– R
0
0
R/W
The number of multiplexer cycles (frames) per XFER_BUSY interrupt. Maximum value
is 8191 cycles.
00
R
Indicates that hardware is still writing the 0x28A0 byte. Additional writes to this byte
are locked out while it is one. Write duration could be as long as 6 ms.
0 – R Storage location for STEMP[10:0] at 22C. STEMP[10:0] is an 11 bit word.
0
–
R/W
Causes VBAT_RTC to be measured whenever a temperature measurement is
performed.
0 – R/W Reserved. Must always be zero.
Sets the period between temperature measurements. Automatic measurements can be
enabled in any mode (MSN or SLP). TEMP_PER = 0 disables automatic temperature
updates, in which case TEMP_START may be used by the MPU to initiate a one-shot
temperature measurement.
0 – R/W _{TEMP_PER Time (seconds)}
0
No temperature updates
1-6
2^{(3 + TEMP _ PER)}
7
Continuous updates
Selects the power source for the temp sensor:
0
–
R/W
1 = V3P3D, 0 = VBAT_RTC.
This bit is ignored in SLP mode, where the temp sensor is always powered by
VBAT_RTC.
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