71M6543F-IGTR/F Maxim Integrated Products, 71M6543F-IGTR/F Datasheet - Page 119
71M6543F-IGTR/F
Manufacturer Part Number
71M6543F-IGTR/F
Description
PMIC Solutions Precision Energy Meter IC
Manufacturer
Maxim Integrated Products
Type
Metering SoCr
Datasheet
1.71M6543F-DB.pdf
(157 pages)
Specifications of 71M6543F-IGTR/F
Core
8051
Core Architecture
8051
Data Bus Width
8 bit
Data Ram Size
5 KB
Device Million Instructions Per Second
5 MIPS
Interface Type
I2C, ICE, SPI, UART
Maximum Clock Frequency
5 MHz
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Number Of Programmable I/os
51
Number Of Timers
2
On-chip Adc
22 bit
Operating Supply Voltage
3 V to 3.6 V
Package / Case
LQFP-100
Processor Series
8051
Program Memory Size
64 KB
Program Memory Type
Flash
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Quantity
Price
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Part Number:
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}
#endif //#if HIGH_PRECISION_METER
The byte values containing less than 8 valid bits are LSB justified. For example Info Page offset 0x90 is
an 8-bit object, whose three LSBs are bits [10:8] of the complete TEMP_85[10:0] 11-bit object. The Info
Page data objects are 2’s complement format and should be sign extended when read into a 16-bit data
type (see case _TEMP85 in the code example).
#if HIGH_PRECISION_METER
int16_t read_trim (enum eTRIMSEL select) {
v1.2
uint8r_t *px;
int16_t x;
px = ((uint16_t)select) + ((uint8r_t *)(CE3 << 10));
switch (select)
{
}
return (x);
default:
case _TRIMBGD:
case _TRIMBGB:
case _TEMP85:
INFO_PG = 1;
x = *px;
INFO_PG = 0;
break;
INFO_PG = 1;
x = *(uint16r_t*)px;
INFO_PG = 0;
break;
INFO_PG = 1;
x = *(uint16r_t*)px;
INFO_PG = 0;
if (x & 0x800)
break;
x |= 0xF800;
© 2008–2011 Teridian Semiconductor Corporation
71M6543F/H and 71M6543G/GH Data Sheet
119
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