71m6543h-igtr/f Maxim Integrated Products, Inc., 71m6543h-igtr/f Datasheet - Page 114
71m6543h-igtr/f
Manufacturer Part Number
71m6543h-igtr/f
Description
Energy Meter Ic
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.71M6543H-IGTRF.pdf
(157 pages)
- Current page: 114 of 157
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71M6543F/H Data Sheet
114
Name
SECURE
SLEEP
SPI_CMD
SPI_E
SPI_SAFE
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
TEMP_BSEL
TEMP_PER[2:0]
SFR FD[7:0] –
SFR B2[6]
Location Rst Wk Dir
2708[7:0]
2881[7:0]
2882[7:5]
2107[4:0]
2108[7:0]
230A[2:0]
230B[7:0]
28A0[2:0]
28B2[7]
270C[4]
270C[3]
28A0[3]
28A0[4]
28A0[7]
0
0
1
0
0
–
–
0
0
0
0
0
0
0
0
–
1
0
0
–
–
0
0
–
–
–
–
© 2008–2011 Teridian Semiconductor Corporation
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Description
Inhibits erasure of page 0 and flash memory addresses above the beginning of CE code
as defined by CE_LCTN[5:0]. Also inhibits the reading of flash memory by external devices
(SPI or ICE port).
Puts the 71M6543F/H to sleep. Ignored if system power is present. The 71M6543F/H
wakes when the Wake timer times out, when push button is pushed, or when system
power returns.
SPI command. 8-bit command from the bus master.
SPI port enable. Enables the SPI interface on pins SEGDIO36 – SEGDIO39. Requires
that LCD_MAP[36-39] = 0.
Limits SPI writes to SPI_CMD and a 16 byte region in DRAM. No other writes are
permitted.
SPI Status Register:
Bit 0 = CMD or Address is bad.
Bit 1 = Error in Previous transaction.
Bit 2 = Parity of all bits in previous transaction: 1 if odd.
The result of the temperature measurement.
The number of multiplexer cycles (frames) per XFER_BUSY interrupt. Maximum value is
8191 cycles.
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.
Storage location for STEMP[10:0] at 22C. STEMP[10:0] is an 11 bit word.
Causes VBAT to be measured whenever a temperature measurement is performed.
Selects which battery is monitored by the temperature sensor:
1 = VBAT, 0 = VBAT_RTC
Sets the period between temperature measurements. Automatic measurements can be
enabled in any mode (MSN, BRN, LCD, 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.
TEMP_PER
1-6
0
7
Time (seconds)
No temperature updates
Continuous updates
2
3 (
+
TEMP
_
PER
)
v1.0
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