Configuration Of 10-Bit A/D Converter - Fujitsu F2MC-8FX Hardware Manual

23.2

Configuration of 10-bit A/D Converter

The 10-bit A/D converter consists of the following blocks:
• Clock selector (input clock selector for starting A/D conversion)
• Analog channel selector
• Sample-and-hold circuit
• Control circuit
• A/D data registers (ADDH, ADDL)
• A/D control register 1 (ADC1)
• A/D control register 2 (ADC2)
Block Diagram of 10-bit A/D Converter
ADTG pin
8/16-bit
composite timer
(TO00) output
AN0 to AN07
Vcc
Vss
Figure 23.2-1 Block Diagram of 10-bit A/D Converter
AD8 TIM1
Startup
signal
selector
Sample-
Analog
and-hold
channel
circuit
selector
ANS3 ANS2
A/D control register 1 (ADC1)
CHAPTER 23 10-BIT A/D CONVERTER
A/D control register 2 (ADC2)
TIM0 ADCK ADIE EXT CKDIV1 CKDIV0
Control circuit
A/D data registers
(ADDH, ADDL)
ANS1 ANS0 ADI ADMV ADMVX
IRQ
AD
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