TMP86FH46BNG Datasheet, PDF (147/216 Pages) Toshiba Semiconductor – 8 Bit Microcontroller TLCS-870/C Series

TMP86FH46BNG
12. 10-bit AD Converter (ADC)
The TMP86FH46BNG have a 10-bit successive approximation type AD converter.
12.1 Configuration
The circuit configuration of the 10-bit AD converter is shown in Figure 12-1.
It consists of control register ADCCR1 and ADCCR2, converted value register ADCDR1 and ADCDR2, a DA
converter, a sample-hold circuit, a comparator, and a successive comparison circuit.
DA converter
VAREF
AVDD
AIN0
Analog input
multiplexer
AY
R/2 R
Reference
Sample hold ^voltage
circuit
AVSS
R/2
10
AIN7
n
S EN
4
Analog
comparator
Shift clock
Control circuit
SAIN AINDS
2
AMD
3
ACK
ADCCR1
ADCCR2
AD converter control register 1, 2
Successive approximate circuit
INTADC
8
2 EOCF ADBF
ADCDR1
ADCDR2
AD conversion result register 1, 2
Note:Before using AD converter, set appropriate value to I/O port register combining a analog input port. For de-
tails, see the section on "I/O ports".
Figure 12-1 10-bit AD Converter
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