ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 47

• 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
7.5
Interrupt registers
Figure 17. Nested interrupt management
CPU CC register interrupt bits
Table 10.
1. TRAP and reset events can interrupt a level 3 program.
CPU CC
5, 3
Bit
7
R/W
1
11/10
MAIN
CPU CC register description
RIM
Bit name
6
I1, I0
IT2
IT1
R/W
Software interrupt priority
I1
5
IT4
These two bits indicate the current interrupt software priority:
10: Interrupt software priority = level 0 (main)
01: Interrupt software priority = level 1
00: Interrupt software priority = level 2
11: Interrupt software priority = level 3 (= interrupt disable
These two bits are set/cleared by hardware when entering in
interrupt. The loaded value is given by the corresponding bits in the
interrupt software priority registers (ISPRx).
They can be also set/cleared by software with the RIM, SIM, HALT,
WFI, IRET and PUSH/POP instructions (see
interrupt instruction
TRAP
R/W
IT4
H
4
IT0
set).
IT3
R/W
I0
3
IT1
Function
Software priority level
IT2
R/W
N
2
MAIN
Reset value: 111x 1010 (xAh)
10
Table 12: Dedicated
R/W
3
3
2
1
3
3
3/0
1
Z
I1
1 1
1 1
0 0
0 1
1 1
1 1
Interrupts
(1)
)
R/W
C
0
47/201
I0