Datasheet

71M6513/71M6513H
3-Phase Energy Meter IC
DATA SHEET
AUGUST 2011
Page: 20 of 104 © 2005-2011 Teridian Semiconductor Corporation
A Maxim Integrated Products Brand
Name
Location
Reset value
Description
USR2
0xBF
0x00
User 2 Port, high address byte for MOVX@Ri
IRCON
0xC0
0x00
Interrupt Request Control Register
PSW
0xD0
0x00
Program Status Word
WDCON
0xD8
0x00
Baud Rate Control Register (only WDCON.7 bit used)
A
0xE0
0x00
Accumulator
B
0xF0
0x00
B Register
Table 7: Special Function Registers Reset Values
Accumulator (ACC, A): ACC is the accumulator register. Most instructions use the accumulator to hold the operand. The
mnemonics for accumulator-specific instructions refer to accumulator as “A”, not ACC.
B Register: The B register is used during multiply and divide instructions. It can also be used as a scratch-pad register to hold
temporary data.
Program Status Word (PSW):
MSB LSB
CV AC F0 RS1 RS OV - P
Table 8: PSW Register Flags