m30262f8gp Renesas Electronics Corporation., m30262f8gp Datasheet - Page 166

• Manufacturer Part Number: m30262f8gp
• Description: Renesas 16-bit Cmos Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

A-D Converter
160
Figure 1.16.7. A-D conversion control registers in repeat sweep mode 0
Table 1.16.6. Repeat sweep mode 0 specifications
(4) Repeat sweep mode 0
Reading of A-D result
Function
Start condition
Interrupt request
generation timing
Stop condition
Input pin
In repeat sweep mode 0, the pins selected using the A-D sweep pin select bits , are used for repeat
sweep A-D conversion. Table 1.16.6 shows the specifications of repeat sweep mode 0. Figure 1.16.7
shows the settings of the A-D control registers in repeat sweep mode 0.
A-D control register 0 (Note)
A-D control register 1 (Note 1)
b7
b7
Note: If the A-D control register is rewritten during A-D conversion, the conversion result is indeterminate.
Item
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result is indeterminate.
Note 2: If the VCUT bit is reset from "0" (Vref unconnected) to "1" (Vref connected), wait for 1 µs or more before starting
b6
b6
b5
b5
1
Preliminary Specifications Rev. 0.9
A-D conversion.
b4
1 1
b4
Specifications in this manual are tentative and subject to change.
b3
b3
b2
b2
0
The pin selected by the analog input pin select bits is used for one A-D conversion
b1
b1
Writing "1" to the A-D conversion start flag
Writing "0" to the A-D conversion start flag
None generated
AN
Read A-D register that corresponds to selected analog input pin (at any time)
b0
b0
0
- AN
Bit symbol
Bit symbol
In an attempt to write to these bits, write 0. The value, if read, turns out to be 0.
SCAN0
SCAN1
Nothing is assigned.
ADST
CKS0
MD0
MD1
TRG
CKS1
VCUT
CH0
CH1
CH2
1
MD2
BITS
Symbol
ADCON0
Symbol
ADCON1
(2 pins), AN
A-D operation mode
select bit 1
Analog input pin select
bit
A-D operation mode
select bit 0
Trigger select bit
A-D conversion start flag 0 : A-D conversion disabled
Frequency select bit1
Vref connect bit (Note 2)
Frequency select bit 0
A-D sweep pin
select bit
8/10-bit mode select bit
0
Renesas Technology Corp.
Bit name
Bit name
- AN
Address
Address
03D7
03D6
3
(4 pins), AN
16
16
Specification
Refer to table 1.16.2
Set to 0 when this mode is selected
0 : 8-bit mode
1 : 10-bit mode
1 : Vref connected
1 1 : Repeat sweep mode 0
b4 b3
0 : Software trigger
1 : AD
1 : A-D conversion started
Refer to table 1.16.2
When reset
00000XXX
Invalid in repeat sweep mode 0
When reset
When repeat sweep mode 0 is selected
b1 b0
0 0 : AN
0 1 : AN
1 0 : AN
1 1 : AN
0
00
- AN
TRG
16
5
trigger
0
0
0
0
(6 pins), or AN
, AN
2
to AN
to AN
to AN
1
(2 pins)
Function
3
5
7
Function
(4 pins)
(6 pins)
(8 pins)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
0
- AN
7
(8 pins)
R
R
W
W
M16C/26 Group