ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 43

• Manufacturer Part Number: ST7232AK2-Auto
• Description: 8-bit MCU for automotive, 16 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI
• Manufacturer: STMicroelectronics

Specifications of ST7232AK2-Auto

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators and bypass for external clock
• Four Power Saving Modes: halt, active halt, wait and slow
• Main Clock Controller With: real time base, beep and clock-out capabilities
• Two 16-bit Timers With: 2 input captures, 2 output compares, PWM and pulse generator modes

ST7232Axx-Auto
Table 9.
Figure 14. Interrupt processing flowchart
Level 0 (main)
Level 1
Level 2
Level 3 (= interrupt disable)
Restore PC, X, A, CC
Interrupt software priority
Interrupt software priority levels
Reset
from stack
Y
interrupt
instruction
Pending
Fetch next
instruction
Execute
N
‘IRET’
N
Y
stays pending
The interrupt
Level
High
Low
Interrupt has the same or a
lower software priority
Load I1:0 from interrupt SW register
than current one
Load PC from interrupt vector
Interrupt has a higher
Stack PC, X, A, CC
than current one
software priority
I1
1
1
0
0
TRAP
I1:0
N
Interrupts
Y
I0
0
1
0
1
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