TMP86CM29BFG Datasheet, PDF (155/196 Pages) Toshiba Semiconductor – 8 Bit Microcontroller

TMP86CM29BFG
13. 10-bit AD Converter (ADC)
The TMP86CM29BFG have a 10-bit successive approximation type AD converter.
13.1 Configuration
The circuit configuration of the 10-bit AD converter is shown in Figure 13-1.
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
VSS
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 conbining a analog input port. For details, see the sec-
tion on "I/O ports".
Figure 13-1 10-bit AD Converter
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