ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 141

• 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
10.6.4
Note:
10.6.5
10.6.6
Changing the conversion channel
The application can change channels during conversion. When software modifies the
CH[3:0] bits in the ADCCSR register, the current conversion is stopped, the EOC bit is
cleared, and the A/D converter starts converting the newly selected channel.
Low power modes
The A/D converter may be disabled by resetting the ADON bit. This feature allows reduced
power consumption when no conversion is needed.
Table 55.
Interrupts
None.
10-bit ADC registers
Control/status register (ADCCSR)
Table 56.
Mode
Wait
Halt
ADCCSR
EOC
Bit
R
7
7
6
5
Effect of low power modes on 10-bit ADC
ADCCSR register description
SPEED
R/W
Bit name
SPEED
6
ADON
EOC
Description
No effect on A/D converter
A/D converter disabled.
After wakeup from halt mode, the A/D converter requires a stabilization time
t
can be performed.
STAB
(see
ADON
R/W
End of conversion
ADC clock selection
A/D converter on
5
Section 12: Electrical
This bit is set by hardware. It is cleared by hardware when software
reads the ADCDRH register or writes to any bit of the ADCCSR
register.
0: Conversion is not complete
1: Conversion complete
This bit is set and cleared by software.
0: f
1: f
This bit is set and cleared by software.
0: Disable ADC and stop conversion
1: Enable ADC and start conversion
ADC
ADC
= f
= f
CPU
CPU
4
0
-
/4
/2
characteristics) before accurate conversions
3
Function
2
Reset value: 0000 0000 (00h)
CH[3:0]
R/W
On-chip peripherals
1
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