A-D Control Register 0 - Renesas 7700 FAMILY User Manual

8.2 Block description
Figure 8.2.1 shows the block diagram of the A-D converter. Registers relevant to the A-D converter are
described below.
V
REF
AV
SS
Successive
approximation
A-D register 0
A-D register 1
A-D register 2
A-D register 3
A-D register 4
A-D register 5
A-D register 6
A-D register 7
Data bus (odd)
Data bus (even)
AN
0
AN
1
AN
2
AN
3
AN
4
AN
5
AN
6
AN /AD
7 TRG
Fig. 8.2.1 Block diagram of A-D converter
Register
ladder network
register
7751 Group User's Manual
f /f
1/2
2 4
V
ref
A-D sweep pin select register 1

A-D control register 0

Selector
A-D CONVERTER
8.2 Block description
A-D conversion frequency selected
1/2
Decoder
Comparator
V
IN
AD
8–3