71M6541DSLASHFSLASHG datasheet(43/166 Pages) MAXIM

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71M6541D/F/G and 71M6542F/G Data Sheet

Rev 5

Table 30: The T2CON Bit Functions (SFR 0xC8)

Bit

Symbol

Function

T2CON[7]

–

Not used.

T2CON[6]

I3FR

Polarity control for external interrupt 3: CE_BUSY

0 = falling edge.

1 = rising edge.

T2CON[5]

I2FR

Polarity control for external interrupt 2:

XPULSE, YPULSE, WPULSE and VPULSE

0 = falling edge.

1 = rising edge.

T2CON[4:0]

–

Not used.

Table 31: The IRCON Bit Functions (SFR 0xC0)

Bit

Symbol

Function

IRCON[7]

–

Not used

IRCON[6]

–

Not used

IRCON[5]

IEX6

1 = External interrupt 6 flag:

XFER_BUSY, RTC_1S, RTC_1M or RTC_T

IRCON[4]

IEX5

1 = External interrupt 5 flag:

EEPROM or SPI

IRCON[3]

IEX4

1 = External interrupt 4 flag:

VSTAT

IRCON[2]

IEX3

1 = External interrupt 3 flag:

CE_BUSY

IRCON[1]

IEX2

1 = External interrupt 2 flag:

XPULSE, YPULSE, WPULSE or VPULSE

IRCON[0]

–

Not used.

TF0 and TF1 (Timer 0 and Timer 1 overflow flags) are automatically cleared by hardware when

the service routine is called (Signals T0ACK and T1ACK – port ISR – active high when the

service routine is called). IE0, IE1 and IEX2-IEX6 are cleared automatically when hardware

causes execution to vector to the interrupt service routine.

71M6541D/F/G Datasheet(PDF) 43 Page - Maxim Integrated Products

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