STEVAL-ISB005V1 STMicroelectronics, STEVAL-ISB005V1 Datasheet - Page 31

• Manufacturer Part Number: STEVAL-ISB005V1
• Description: BOARD EVAL CHARGER ST7260/L6924D
• Manufacturer: STMicroelectronics
• Type: Battery Managementr

Specifications of STEVAL-ISB005V1

• Main Purpose: Power Management, Battery Charger
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: L6924, ST72F63BK6M1
• Primary Attributes: 1 Cell- Li-Ion / Li-Pol, 5 V (USB Input)
• Secondary Attributes: Powered by Wall Adaptor Also, LED Status Indicators
• Input Voltage: 5 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6924D, ST7260
• Other names: 497-8428

ST7260xx
Note:
1
2
3
Peripheral interrupts
Different peripheral interrupt flags in the status register are able to cause an interrupt when
they are active if both:
●
●
If any of these two conditions is false, the interrupt is latched and thus remains pending.
Clearing an interrupt request is done by one of the two following operations:
●
●
The clearing sequence resets the internal latch. A pending interrupt (i.e. waiting to be
enabled) will therefore be lost if the clear sequence is executed.
All interrupts allow the processor to leave the Wait low power mode.
Exit from Halt mode may only be triggered by an External Interrupt on one of the ITi ports
(PA4-PA7 and PB4-PB7), an end suspend mode Interrupt coming from USB peripheral, or a
reset.
Figure 16. Interrupt processing flowchart
The I bit of the CC register is cleared.
The corresponding enable bit is set in the control register.
Writing “0” to the corresponding bit in the status register.
Accessing the status register while the flag is set followed by a read or write of an
associated register.
FROM RESET
EXECUTE INSTRUCTION
RESTORE PC, X, A, CC FROM STACK
THIS CLEARS I BIT BY DEFAULT
FETCH NEXT INSTRUCTION
N
BIT I SET
IRET
Y
Y
N
LOAD PC FROM INTERRUPT VECTOR
N
STACK PC, X, A, CC
INTERRUPT
SET I BIT
Y
Interrupts
31/139