st72324bk STMicroelectronics, st72324bk Datasheet - Page 38
st72324bk
Manufacturer Part Number
st72324bk
Description
3 V/5 V Range 8-bit Mcu With 4/8 Kbyte Rom, 10-bit Adc, Four Timers And Spi
Manufacturer
STMicroelectronics
Datasheet
1.ST72324BK.pdf
(167 pages)
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Interrupts
6.7
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Figure 17. External interrupt control bits
External interrupt control register (EICR)
Reset value: 0000 0000 (00h)
Bit 7:6 = IS1[1:0] ei2 and ei3 sensitivity
PF2
PB4
IS11
PA3
PB3
The interrupt sensitivity, defined using the IS1[1:0] bits, is applied to the following
external interrupts:
–
–
PORT F [2:0] INTERRUPTS
PORT B4 INTERRUPT
7
PORT A3 INTERRUPT
PORT B [3:0] INTERRUPTS
PFDDR.2
PBDDR.4
PADDR.3
PBDDR.3
PFOR.2
PBOR.4
PAOR.3
ei2 (port B3..0) as shown in
ei3 (port B4) as shown in
PBOR.3
IPA BIT
IPB BIT
IS10
IPB
Read / Write
SENSITIVITY
SENSITIVITY
IS20
IS10
SENSITIVITY
SENSITIVITY
IS20
IS10
CONTROL
CONTROL
Table 11
CONTROL
CONTROL
EICR
EICR
EICR
EICR
IS21
Table 10
IS21
IS11
IS21
IS11
PF2
PF1
PF0
IS20
PB3
PB2
PB1
PB0
IPA
ei1 INTERRUPT SOURCE
ei3 INTERRUPT SOURCE
ei0 INTERRUPT SOURCE
ei2 INTERRUPT SOURCE
ST72323 ST72323L
0
Read only
0
0
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