71M6542F MAXIM [Maxim Integrated Products], 71M6542F Datasheet - Page 128

• Manufacturer Part Number: 71M6542F
• Description: 0.1% Accuracy Over 2000:1 Current Range Energy Meter ICs
• Manufacturer: MAXIM [Maxim Integrated Products]

given in
71M6541D/F/G and 71M6542F/G Data Sheet
status flags for the preceding CE code pass (CE_BUSY interrupt). The significance of the bits in
CESTATUS is shown in
The CE is initialized by the MPU using CECONFIG
SAG_CNT, FREQSEL[1:0], EXT_PULSE, PULSE_SLOW and PULSE_FAST. The CECONFIG bit definitions are
CECONFIG
Address
CESTATUS
0x20
19:8
CE
7:6
31:4
bit
23
22
21
20
1. Default for CE41A01 (71M6541D/F/G or CE41A04 (71M6542F/G) CE code for use with local
2. Default for CE41B016201 and CE41B016601 codes that support the 71M6x01 remote
bit
3
2
1
0
Table
sensors.
sensors.
FREQSEL[1:0]
83.
CECONFIG
EXT_TEMP
EDGE_INT
SAG_CNT
SAG_INT
Reserved
Name
Name
Not Used
Not Used
SAG_B
SAG_A
Name
F0
Table
Table 83: CECONFIG (CE RAM 0x20) Bit Definitions
Table 81: CESTATUS (CE RAM 0x80) Bit Definitions
81.
Default Description
0x00B0DB00
0x0030DB00
(0xFC)
252
Description
These unused bits are always zero.
F0 is a square wave at the exact fundamental input frequency.
This unused bit is always zero.
Normally zero. Becomes one when VB remains below SAG_THR for
SAG_CNT samples. Does not return to zero until VB rises above
SAG_THR.
Normally zero. Becomes one when VA remains below SAG_THR for
SAG_CNT samples. Does not return to zero until VA rises above
SAG_THR.
0
0
1
1
0
Data
Table 82: CECONFIG Register
When this bit is set, control of temperature compensation is
enabled for the 71M6x01 Isolated Sensor Interface.
When 1, the MPU controls temperature compensation via the
GAIN_ADJn registers (CE RAM 0x40-0x42), when 0, the CE is in
control.
When 1, XPULSE produces a pulse for each zero-crossing of
the mains phase selected by FREQSEL[1:0] , which can be used
to interrupt the MPU.
When 1, activates YPULSE output when a sag condition is
detected.
The number of consecutive voltage samples below SAG_THR
(CE RAM 0x24) before a sag alarm is declared. The default value
is equivalent to 100 ms.
monitor, sag detection, and for the zero crossing counter
(MAINEDGE_X, CE RAM 0x83).
*71M6542F/G only
FREQSEL[1:0] selects the phase to be used for the frequency
1
2
Description
See description of the CECONFIG bits in
Table
0
0
1
FREQ SEL[1:0]
(Table
83.
82). This register contains in packed form
X
0
1
Phase Selected
Not allowed
B*
A