UPD784915B Datasheet, PDF (41/86 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784915B, 784916B
Figure 3-18. Block Diagram of A/D Converter
ANI0
ANI1
ANI2
ANI3
.
.
.
.
.
.
ANI11
Sample & hold circuit
Voltage
comparator
Series resistor string
R/2
R
Successive approximation
register (SAR)
TM0-CR01 coincidence
Conversion
R/2
TM0-CR02 coincidence
trigger
TM1-CR13 coincidence
Control circuit
INTAD
TM5-CR50 coincidence
Trigger source select register 1
8
Trigger _{Delay detection}
enable
circuit
A/D conversion
end interrupt
(TRGS1)
A/D converter mode
A/D conversion result
register (ADM)
register (ADCR)
16
8
Internal bus
AVREF
AVSS2
3.9 VCR Analog Circuits
The µPD784916B is provided with the following VCR analog circuits:
• CTL amplifier
• RECCTL driver (rewritable)
• DPG comparator
• DFG amplifier
• DPFG separation circuit (ternary separation circuit)
• CFG amplifier
• Reel FG comparator (2 channels)
• CSYNC comparator
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