HD404339 Datasheet, PDF (60/80 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer with large-capacity memory

HD404339 Series
AN₀
AN₁
AN₂
AN₃
AN₄
AN₅
AN₆
AN₇
AN₈
AN₉
AN₁₀
AN₁₁
AV_CC
AV_SS
D/A
A/D interrupt
request flag
(IFAD)
4
2
A/D mode
register 1
(AMR1)
4
A/D mode
register 2
(AMR2)
+
Comp
–
Encoder
A/D data
register
(ADRU, L)
A/D
controller
Control signal
for conversion
time
A/D start flag
(ADSF)
A/D channel
register (ACR)
I_AD off flag
(IAOF)
Operating mode signal (1 in
stop, watch, and subactive modes)
Figure 45 A/D Converter Block Diagram
58