st92f124 STMicroelectronics, st92f124 Datasheet - Page 112

• Manufacturer Part Number: st92f124
• Description: 8/16-bit Single Voltage Flash Mcu Family With Ram, E3 Tmemulated Eeprom, Can 2.0b And J1850 Blpd
• Manufacturer: STMicroelectronics

ST92F124/F150/F250 - INTERRUPTS
5.12 WAKE-UP / INTERRUPT LINES MANAGEMENT UNIT (WUIMU)
5.12.1 Introduction
The Wake-up/Interrupt Management Unit extends
the number of external interrupt lines from 8 to 23
(depending on the number of external interrupt
lines mapped on external pins of the device).
The 16 additional external Wake-up/interrupt pins
can be programmed as external interrupt lines or
as wake-up lines, able to exit the microcontroller
from low power mode (STOP mode) (see
55).
Figure 55. Wake-Up Lines / Interrupt Management Unit Block Diagram
112/426
9
Note 1: The reset signal on the Stop bit is stronger than the set signal.
NMI
WKUP[7:0]
TO CPU
SW SETTING
WUCTRL
WUTRL
WUPRL
WUMRL
1)
Figure
WKUP[15:8]
5.12.2 Main Features
I
I
I
I
I
Note: The number of available pins is device de-
pendent. Refer to the device pinout description.
TO RCCU - Stop Mode Control
1
WUMRH
Supports up to 16 additional external wake-up
or interrupt lines
Wake-Up lines can be used to wake-up the ST9
from STOP mode.
Programmable selection of wake-up or interrupt
Programmable wake-up trigger edge polarity
All Wake-Up Lines maskable
WUPRH
WUTRH
Not Connected
0
TRIGGERING LEVEL REGISTERS
PENDING REQUEST REGISTERS
MASK REGISTERS
INTD1 - External Interrupt Channel
TO CPU