ST7LIT10BF1 STMicroelectronics, ST7LIT10BF1 Datasheet - Page 37

• Manufacturer Part Number: ST7LIT10BF1
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7LIT10BF1

• Up To 4 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• 128 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• Clock Sources: Internal 1% RC oscillator (on ST7FLITE15B and ST7FLITE19B), crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wake-up from Halt, Wait and Slow

INTERRUPTS (cont’d)
Figure 21. Interrupt Processing Flowchart
Table 5. Interrupt Mapping
Note 1: This interrupt exits the MCU from “Auto Wake-up from Halt” mode only.
Note 2 : These interrupts exit the MCU from “ACTIVE-HALT” mode only.
N°
10
11
12
13
0
1
2
3
4
5
6
7
8
9
FROM RESET
LITE TIMER LITE TIMER RTC2 interrupt
LITE TIMER
Comparator Comparator Interrupt
AT TIMER
AT TIMER
Source
RESET
Block
TRAP
AWU
SPI
ei0
ei1
ei2
ei3
SI
Reset
Software Interrupt
Auto Wake Up Interrupt
External Interrupt 0
External Interrupt 1
External Interrupt 2
External Interrupt 3
AVD interrupt
AT TIMER Output Compare Interrupt
or Input Capture Interrupt
AT TIMER Overflow Interrupt
LITE TIMER Input Capture Interrupt
LITE TIMER RTC1 Interrupt
SPI Peripheral Interrupts
AT TIMER Overflow Interrupt
EXECUTE INSTRUCTION
Description
RESTORE PC, X, A, CC FROM STACK
THIS CLEARS I BIT BY DEFAULT
FETCH NEXT INSTRUCTION
N
I BIT SET?
IRET?
Y
Y
PWMxCSR
AWUCSR
or ATCSR
Register
ATCSR2
LTCSR2
SPICSR
CMPCR
ATCSR
LTCSR
LTCSR
SICSR
Label
N/A
N/A
N
LOAD PC FROM INTERRUPT VECTOR
Priority
Highest
Lowest
Priority
Priority
Order
N
STACK PC, X, A, CC
INTERRUPT
HALT or
PENDING?
AWUFH
SET I BIT
yes
yes
yes
from
Exit
yes
yes
yes
no
no
no
no
no
no
no
1)
2)
2)
Y
FFECh-FFEDh
FFEAh-FFEBh
ST7LITE1xB
FFFCh-FFFDh
FFFAh-FFFBh
FFEEh-FFEFh
FFFEh-FFFFh
FFE8h-FFE9h
FFE6h-FFE7h
FFE4h-FFE5h
FFE2h-FFE3h
FFE0h-FFE1h
FFF6h-FFF7h
FFF4h-FFF5h
FFF2h-FFF3h
FFF8h-FFF9h
FFF0h-FFF1h
Address
Vector
37/159
1