ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 52

• 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

Interrupts
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Table 13.
4:3
1:0
Bit
2
EICR register description (continued)
Bit name
IS2[1:0]
IPA
-
Interrupt sensitivity (ei0 and ei1)
Interrupt polarity for port A
Reserved, must always be kept cleared
The interrupt sensitivity, defined using the IS2[1:0] bits, is applied to
the following external interrupts:
External interrupt ei0 (port A[3:0]):
00: External interrupt sensitivity = falling edge and low level
01: External interrupt sensitivity = rising edge only (IPA bit = 0) and
10: External interrupt sensitivity = falling edge only (IPA bit = 0) and
11: External interrupt sensitivity = rising and falling edge
External interrupt ei1 port ([F2:0]):
00: External interrupt sensitivity = falling edge and low level
01: External interrupt sensitivity = rising edge only
10: External interrupt sensitivity = falling edge only
11: External interrupt sensitivity = rising and falling edge
These 2 bits can be written only when I1 and I0 of the CC register
are both set to 1 (level 3).
This bit is used to invert the sensitivity of the port A [3:0] external
interrupts. It can be set and cleared by software only when I1 and I0
of the CC register are both set to 1 (level 3).
0: No sensitivity inversion
1: Sensitivity inversion
(IPA bit = 0) and rising edge and high level (IPA bit = 1)
falling edge only (IPA bit = 1)
rising edge only (IPA bit = 1)
(IPA bit = 0 and 1)
Function
ST7232Axx-Auto