ST72F324BJ STMICROELECTRONICS [STMicroelectronics], ST72F324BJ Datasheet - Page 125

• Manufacturer Part Number: ST72F324BJ
• Description: 8-bit MCU, 3.8 to 5.5 V operating range with 8 to 32 Kbyte Flash/ROM, 10-bit ADC, 4 timers, SPI, SCI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST72324B
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 69.
Interrupts
None.
ADC registers
ADC Control/Status Register (ADCCSR)
Table 70.
ADCCSR
.
Bit
7
6
5
EOC
Mode
RO
Wait
Halt
7
SPEED
ADON
Name
EOC
Effect of low power modes on ADC
ADCCSR register description
SPEED
No effect on A/D converter
A/D converter disabled.
After wake-up from Halt mode, the A/D converter requires a stabilization time t
(see
performed.
End of Conversion
ADC clock selection
A/D Converter on
R/W
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
6
Section 12: Electrical
ADC
ADC
= f
= f
ADON
CPU
CPU
RW
5
/4
/2
Reserved
characteristics) before accurate conversions can be
4
-
Description
Function
3
2
Reset value: 0000 0000 (00h)
CH[3:0]
RW
On-chip peripherals
1
STAB
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