FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
Table 25: The IEN1 Bit Functions (SFR 0xB8)
Function
Bit
Symbol
–
IEN1[7]
Not used.
–
IEN1[6]
Not used.
IEN1[5]
IEN1[4]
IEN1[3]
IEN1[2]
IEN1[1]
IEN1[0]
EX6
EX5
EX4
EX3
EX2
–
EX6 = 0 disables external interrupt 6: XFER_BUSY, RTC_1SEC, WD_NROVF
EX5 = 0 disables external interrupt 5: EEPROM_BUSY
EX4 = 0 disables external interrupt 4: PLL_OK (rise), PLL_OK (fall)
EX3 = 0 disables external interrupt 3: CE_BUSY
EX2 = 0 disables external interrupt 2: FWCOL0, FWCOL1, SPI
Not Used.
Table 26: The IEN2 Bit Functions (SFR 0x9A)
Bit
Symbol
Function
IEN2[0]
ES1
ES1 = 0 disables the serial channel 1 interrupt.
Table 27: TCON Bit Functions (SFR 0x88)
Function
Bit
Symbol
TF1
TCON[7]
TCON[6]
TCON[5]
TCON[4]
TCON[3]
Timer 1 overflow flag.
TR1
Not used for interrupt control.
Timer 0 overflow flag.
TF0
TR0
Not used for interrupt control.
External interrupt 1 flag.
IE1
External interrupt 1 type control bit:
0 = interrupt on low level.
1 = interrupt on falling edge.
External interrupt 0 flag
TCON[2]
TCON[1]
TCON[0]
IT1
IE0
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.
Polarity control for external interrupt 3: CE_BUSY
0 = falling edge.
T2CON[6]
I3FR
1 = rising edge.
Polarity control for external interrupt 2: FWCOL0, FWCOL1, SPI
T2CON[5]
I2FR
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]
IRCON[4]
IRCON[3]
IRCON[2]
IEX6
IEX5
IEX4
IEX3
1 = External interrupt 6 occurred and has not been cleared.
1 = External interrupt 5 occurred and has not been cleared.
1 = External interrupt 4 occurred and has not been cleared.
1 = External interrupt 3 occurred and has not been cleared.
v1.3
© 2005-2010 TERIDIAN Semiconductor Corporation
31
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
