71M6541D Maxim, 71M6541D Datasheet - Page 42

• Manufacturer Part Number: 71M6541D
• Description: The 71M6541D/71M6541F/71M6541G/71M6542F/71M6542G are Teridian™ 4th-generation single-phase metering SoCs with a 5MHz 8051-compatible MPU core, low-power RTC with digital temperature compensation, flash memory, and LCD driver
• Manufacturer: Maxim

71M6541D/F/G and 71M6542F/G Data Sheet
42
T2CON[4:0]
T2CON[7]
T2CON[6]
T2CON[5]
IRCON[7]
IRCON[6]
IRCON[5]
IRCON[4]
IRCON[3]
IRCON[2]
TCON[7]
TCON[6]
TCON[5]
TCON[4]
TCON[3]
TCON[2]
TCON[1]
TCON[0]
IEN1[2]
IEN1[1]
IEN1[0]
IEN2[0]
Bit
Bit
Bit
Bit
Symbol
Symbol
Symbol
Symbol
I3FR
I2FR
IEX6
IEX5
IEX4
IEX3
EX3
EX2
ES1
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
Table 30: The T2CON Bit Functions (SFR 0xC8)
–
–
–
–
–
Table 31: The IRCON Bit Functions (SFR 0xC0)
Table 28: The IEN2 Bit Functions (SFR 0x9A)
Table 29: TCON Bit Functions (SFR 0x88)
EX3 = 0 disables external interrupt 3: CE_BUSY
EX2 = 0 disables external interrupt 2:
XPULSE, YPULSE, WPULSE or VPULSE
Not Used.
ES1 = 0 disables the serial channel 1 interrupt.
Timer 1 overflow flag.
Not used for interrupt control.
Timer 0 overflow flag.
Not used for interrupt control.
External interrupt 1 flag: DIO status changed
External interrupt 1 type control bit:
External interrupt 0 flag: DIO status changed
External interrupt 0 type control bit:
Not used.
Polarity control for external interrupt 3: CE_BUSY
Polarity control for external interrupt 2:
XPULSE, YPULSE, WPULSE and VPULSE
Not used.
Not used
Not used
1 = External interrupt 6 occurred and has not been cleared:
XFER_BUSY, RTC_1S, RTC_1M or RTC_T
1 = External interrupt 5 occurred and has not been cleared:
EEPROM or SPI
1 = External interrupt 4 occurred and has not been cleared:
VSTAT
1 = External interrupt 3 occurred and has not been cleared:
CE_BUSY
0 = interrupt on low level.
1 = interrupt on falling edge.
0 = interrupt on low level.
1 = interrupt on falling edge.
0 = falling edge.
1 = rising edge.
0 = falling edge.
1 = rising edge.
Function
Function
Function
Function
Rev 2