tmp88ch40img TOSHIBA Semiconductor CORPORATION, tmp88ch40img Datasheet - Page 129

• Manufacturer Part Number: tmp88ch40img
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

14. 10-bit AD Converter (ADC)
14.1 Configuration
converter, a sample-hold circuit, a comparator, and a successive comparison circuit.
The TMP88CH40IMG have a 10-bit successive approximation type AD converter.
It consists of control register ADCCRA and ADCCRB, converted value register ADCDRH and ADCDRL, a DA
Note: Before using AD converter, set appropriate value to I/O port register conbining a analog input port. For details, see the sec-
The circuit configuration of the 10-bit AD converter is shown in Figure 14-1.
VAREF
AVDD
AIN0
AIN3
tion on "I/O ports".
SAIN
Analog input
multiplexer
4
n
A
S EN
Y
AINDS
AD converter control register 1, 2
Figure 14-1 10-bit AD Converter
ADCCRA
R/2
Sample hold
circuit
AMD
2
Control circuit
R
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ADCCRB
Analog
comparator
Shift clock
Reference
ACK
3
DA converter
voltage
AD conversion result register 1, 2
Successive approximate circuit
ADCDRH
R/2
10
8
AVSS
2
ADCDRL
EOCF
TMP88CH40IMG
INTADC
ADBF