tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 225

• Manufacturer Part Number: tmp88fw45afg
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

18. 10-bit AD Converter (ADC)
18.1
converter, a sample-hold circuit, a comparator, and a successive comparison circuit.
The TMP88FW45AFG have a 10-bit successive approximation type AD converter.
The circuit configuration of the 10-bit AD converter is shown in Figure 18-1.
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 combining a analog input port. For details,
Configuration
VAREF
AIN15
see the section on "I/O ports".
AVDD
AIN0
SAIN
Analog input
multiplexer
4
n
A
S EN
Y
AINDS
Figure 18-1 10-bit AD Converter
AD converter control register 1, 2
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
TMP88FW45AFG
INTADC
ADBF