st7fmc2s7t6 STMicroelectronics, st7fmc2s7t6 Datasheet - Page 47

• Manufacturer Part Number: st7fmc2s7t6
• Description: 8-bit Mcu With Nested Interrupts, Flash, 10-bit Adc, Brushless Motor Control, Five Timers, Spi, Linsci
• Manufacturer: STMicroelectronics

EXTERNAL INTERRUPT CONTROL REGISTER (EICR) (Cont’d)
- ei0 (port D6..4)
- ei0 (port D3..1)
These 2 bits can be written only when I1 and I0 of
the CC register are both set to 1 (level 3).
IS31 IS30
IS31 IS30
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Falling edge only
Rising edge only
Falling edge &
IPA bit =0
low level
External Interrupt Sensitivity
External Interrupt Sensitivity
Falling edge & low level
Rising and falling edge
Rising and falling edge
Falling edge only
Rising edge only
Falling edge only
Rising edge only
Rising edge
& high level
IPA bit =1
Bit 0 = IPA Interrupt polarity for port D
This bit is used to invert the sensitivity of the port D
[6:4] external interrupts. It can be set and cleared
by software only when I1 and I0 of the CC register
are both set to 1 (level 3).
0: No sensitivity inversion
1: Sensitivity inversion
ST7MC1/ST7MC2
47/308
1