71m6543h-igtr/f Maxim Integrated Products, Inc., 71m6543h-igtr/f Datasheet - Page 23

• Manufacturer Part Number: 71m6543h-igtr/f
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

Notes:
8
Table 5
corresponding data type and format sent back by the 71M6xx3 remote sensor and how the data is stored
in RMT_RD[15:8] and RMT_RD[7:0]. The MPU selects which of the three phases is read by asserting the
proper code in the RCMD[1:0] field, as shown in
.
With hardware and trim-related information on each connected 71M6xx3 Isolated Sensor available to the
71M6543F/H, the MPU can implement temperature compensation of the energy measurement based on the
individual temperature characteristics of the 71M6xx3 Isolated Sensors. See
Compensation
Table 6
71M6xx3 Data Sheet for additional details.
v1.0
RCMD[4:2]
001
001
010
010
010
1.
2.
3.
4.
TRIMT[7:0] is the VREF trim value for all 71M6xx3 devices. Note that the TRIMT[7:0] 8-bit value is formed
by RMT_RD[8] and RMT_RD[7:1]. See the 71M6xxx Data Sheet for the equations related to
and the corresponding temperature coefficient.
TRIMBGB[7:0] and TRIMBGD[7:0] are trim values used for characterizing the 71M6113 (0.5%) and 71M6203
(0.1%) over temperature. See the 71M6xxx Data sheet for the equations related to
TRIMBGD[7:0]
See
See
shows the allowable combinations of values in RCMD[4:2] and TMUXRn[2:0], and the
shows all I/O RAM registers used for control of the external 71M6xx3 Isolated Sensors. See the
2.5.6
2.5.8
TMUXRn[2:0]
Notes:
for details.
000
001
010
011
100
101
110
111
00X
11X
00X
01X
10X
71M6xx3 Temperature Sensor
71M6xx3 VCC Monitor
1. Only two codes of RCMD[4:2] (SFR 0xFC[4:2]) are relevant for normal
2. For the RCMD[1:0] control field, codes 01, 10 and 11 are valid and 00
3. The specific phase (A, B or C) associated with each TMUXRn[2:0]
Command
RCMD[4:2]
operation. These are RCMD[4:2] = 001 and 010. Codes 000 and 101
are invalid and will be ignored if used. The remaining codes are
reserved and must not be used.
is invalid and must not be used.
field, is determined by how the IADCn input pins are connected in the
meter design.
and the corresponding temperature coefficients.
Command 1
Command 2
TRIMT[7:0]
(trim fuse for all 71M6xx3)
TRIMBGB[7:0] and
TRIMBGD[7:0]
(additional trim fuses for
71M6113 and 71M6203 only)
STEMP[10:0]
(sensed 71M6xx3 temperature)
VSENSE[7:0]
(sensed 71M6xx3 supply voltage)
VERSION[7:0]
(chip version)
Reserved
Reserved
Reserved
Reserved
© 2008–2011 Teridian Semiconductor Corporation
Invalid
Invalid
Read Operation
Table 5: Remote Interface Read Commands
Table 4. RCMD[4:0] Bits
on page 57.
00
01
10
11
Phase Selector
RCMD[1:0]
on page 56.
Table
STEMP[10:8]=RMT_RD[10:8]
IADC
IADC
IADC
TRIMT[7]=RMT_RD[8]
(RMT_RD[15:
4.
Invalid
RMT_RD [15:8]
TRIMBGB[7:0]
VERSION[7:0]
2
4
6
-IADC3
-IADC5
-IADC7
All zeros
11] are sign extended)
Associated TMUXRn
Control Field
TMUXR
TMUXR
TMUXR
4.5 Metrology Temperature
---
71M6543F/H Data Sheet
TRIMBGB[7:0]
2
4
6
TRIMT[6:0]=RMT_RD[7:1]
[2:0]
[2:0]
[2:0]
RMT_RD [7:0]
TRIMBGD[7:0]
VSENSE[7:0]
STEMP[7:0]
All zeros
TRIMT[7:0]
and
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