ST10F276 datasheet(171/229 Pages) STMICROELECTRONICS

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ST10F276

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Note:

1. XP3IC register has the same bit field as xxIC interrupt registers

Table 80.

EXIxES bit description

Bit

Function

EXIxES

(x=7...0)

00 = Fast external interrupts disabled: Standard mode.

EXxIN pin not taken in account for entering/exiting Power Down mode.

01 = Interrupt on positive edge (rising).

Enter Power Down mode if EXiIN = ‘0’, exit if EXxIN = ‘1’ (referred as "high" active

level)

10 = Interrupt on negative edge (falling).

Enter Power Down mode if EXiIN = ‘1’, exit if EXxIN = ‘0’ (referred as “low” active

level)

11 = Interrupt on any edge (rising or falling).

Always enter Power Down mode, exit if EXxIN level changed.

EXISEL (F1DAh / EDh)

ESFR

Reset value: 0000h

987

65432

EXI7SS

EXI6SS

EXI5SS

EXI4SS

EXI3SS

EXI2SS

EXI1SS

EXI0SS

Table 81.

EXISEL

Bit

Function

EXIxSS

External Interrupt x Source Selection (x = 7...0)

00 = Input from associated Port 2 pin.

01 = Input from “alternate source”.

10 = Input from Port 2 pin ORed with “alternate source”.

11 = Input from Port 2 pin ANDed with “alternate source”.

Table 82.

EXIxSS and port 2 pin configurations

EXIxSS

Port 2 pin

Alternate source

P2.8

CAN1_RxD

P2.9

CAN2_RxD / SCL

P2.10

RTCSI (Second)

P2.11

RTCAI (Alarm)

4...7

P2.12...15

Not used (zero)

XP3IC (F19Eh / CFh)

ESFR

Reset value: --00h

987

65432

---

-----

XP3IR XP3IE

XP3ILVL

GLVL

xxIC (yyyyh / zzh)

SFR area

Reset value: --00h

987

65432

---

-----

xxIR xxIE

ILVL

GLVL

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