ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 77

• 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 29.
MCC beep control register (MCCBCR)
Table 30.
MCCBCR
7:2
1:0
Bit
Bit
7
1
0
MCCSR register description (continued)
MCCBCR register description
Bit name
Bit name
BC[1:0]
6
OIE
OIF
-
Oscillator interrupt enable
Oscillator interrupt flag
Reserved, must be kept cleared
Beep control
5
This bit set and cleared by software.
0: Oscillator interrupt disabled
1: Oscillator interrupt enabled
This interrupt can be used to exit from active halt mode. When this
bit is set, calling the ST7 software HALT instruction enters the active
halt power saving mode
This bit is set by hardware and cleared by software reading the
MCCSR register. It indicates when set that the main oscillator has
reached the selected elapsed time (TB1:0).
0: Timeout not reached
1: Timeout reached
Caution: The BRES and BSET instructions must not be used on the
MCCSR register to avoid unintentionally clearing the OIF bit.
These 2 bits select the PF1 pin beep capability:
00: Beep mode (with f
01: Beep mode (with f
10: Beep mode (with f
11: beep mode (with f
The beep output signal is available in active halt mode but has to be
disabled to reduce the consumption.
Reserved
signal ~ 50% duty cycle)
signal ~ 50% duty cycle)
signal ~ 50% duty cycle)
-
4
OSC2
OSC2
OSC2
OSC2
.
3
= 8MHz) = ~500-Hz (output beep
= 8MHz) = off
= 8MHz) = ~2-KHz (output beep
= 8MHz) = ~1-KHz (output beep
Function
Function
2
Reset value: 0000 0000 (00h)
On-chip peripherals
1
BC[1:0]
R/W
0
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