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71M6534 Datasheet(PDF) 32 Page - Maxim Integrated Products

Part No. 71M6534
Description  Exceeds IEC 62053/ANSI C12.20 Standards
Download  132 Pages
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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71M6534 Datasheet(HTML) 32 Page - Maxim Integrated Products

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71M6533/G/H and 71M6534/H Data Sheet
FDS_6533_6534_004
32
Rev 2
Table 27: TCON Bit Functions (SFR 0x88)
Bit
Symbol Function
TCON[7]
TF1
Timer 1 overflow flag.
TCON[6]
TR1
Not used for interrupt control.
TCON[5]
TF0
Timer 0 overflow flag.
TCON[4]
TR0
Not used for interrupt control.
TCON[3]
IE1
External interrupt 1 flag.
TCON[2]
IT1
External interrupt 1 type control bit:
0 = interrupt on low level.
1 = interrupt on falling edge.
TCON[1]
IE0
External interrupt 0 flag
TCON[0]
IT0
External interrupt 0 type control bit:
0 = interrupt on low level.
1 = interrupt on falling edge.
Table 28: 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: FWCOL0, FWCOL1, SPI
0 = falling edge.
1 = rising edge.
T2CON[4:0]
Not used.
Table 29: The IRCON Bit Functions (SFR 0xC0)
Bit
Symbol Function
IRCON[7]
Not used
IRCON[6]
Not used
IRCON[5]
IEX6
1 = External interrupt 6 occurred and has not been cleared.
IRCON[4]
IEX5
1 = External interrupt 5 occurred and has not been cleared.
IRCON[3]
IEX4
1 = External interrupt 4 occurred and has not been cleared.
IRCON[2]
IEX3
1 = External interrupt 3 occurred and has not been cleared.
IRCON[1]
IEX2
1 = External interrupt 2 occurred and has not been cleared.
IRCON[0]
Not used.
TF0 and TF1 (Timer 0 and Timer 1 overflow flags) will be automatically cleared by hardware when
the service routine is called (Signals T0ACK and T1ACK – port ISR – active high when the service
routine is called).


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