M306V5ME-XXXSP Datasheet, PDF (151/263 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306V5ME-XXXSP
M306V5EESP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
2.12.5 Repeat Sweep Mode 1
In repeat sweep mode 1, all pins are used for A-D conversion with emphasis on the pin or pins selected
using the A-D sweep pin select bit. Table 2.12.6 shows the specifications of repeat sweep mode 1.
Figures 2.12.14 and 2.12.15 show the A-D control register in repeat sweep mode 1.
Table 2.12.6 Repeat sweep mode 1 specifications
Item
Specification
Function
All pins perform repeat sweep A-D conversion, with emphasis on the pin or
pins selected by the A-D sweep pin select bit
Start condition
Example : AN0 selected AN0 AN1 AN0 AN2 AN0 AN3, etc
Writing “1” to A-D conversion start flag
Stop condition
Writing “0” to A-D conversion start flag
Interrupt request generation timing None generated
Input pin
AN0 (1 pin), AN0 and AN1 (2 pins)
Reading of result of A-D converter Read A-D register corresponding to selected pin (at any time)
A-D control register 0 (Note)
b7 b6 b5 b4 b3 b2 b1 b0
011
Symbol
ADCON0
Address
03D616
When reset
00000???2
Bit symbol
Bit name
CH0
Analog input pin
select bit
CH1
Function
Invalid in repeat sweep mode 1
RW
CH2
MD0
MD1
A-D operation mode
select bit 0
b4 b3
1 1 : Repeat sweep mode 1
Reserved bit
Must always be set to “0”
ADST
A-D conversion start flag 0 : A-D conversion disabled
1 : A-D conversion started
CKS0 ^{Frequency select bit 0}
0 : fAD/4 is selected
1 : fAD/2 is selected
Note: If the A-D control register is rewritten during A-D conversion, the conversion result
is indeterminate.
Figure 2.12.14 A-D control register 0 in repeat sweep mode 1
Rev. 1.0
150