tmp88cu74 TOSHIBA Semiconductor CORPORATION, tmp88cu74 Datasheet - Page 113

• Manufacturer Part Number: tmp88cu74
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

AINDS
AD Conversion Result Register
STOP
2.12 8-Bit AD Converter (ADC)
VAREF
ADCDR
(0000FH)
2.12.1
2.12.2
type AD converter with sample and hold.
The TMP88CU74 each have an 8-channel multiplexed-input 12-bit successive approximate
AIN0
AIN1
AIN10
AIN11
to
Configuration
Control
AD conversion value is confirmed by reading the contents of AD conversion value registers.
7
The AD converter is controlled by the AD converter control register (ADCCR).
The operating state of the AD converter is confirmed by reading EOCF in ADCCR. The
P4, P5 input/output control register
6
to
P4CR, P5CR
R/2
12
Analog input
multiplexer
5
Figure 2.12.2 AD Conversion Result Register
EN S
A
B
to
K
L
EN
Y
SAIN
4
R
Figure 2.12.1 AD Converter
AINDS
3
88CU74-113
Sample and hold
Ladder resistors
AD converter control register
4
2
Tap decoder
Sampling
clock
ADS
ADCCR
1
Control circuit
0
Shift clock
EOCF
Reference
voltage
Read only
Analog
comparator
R
Successive approximate circuit
AD conversion result register
R/2
8
ADCDR
8
TMP88CU74
2007-10-19
2003-02-17
VASS