Renesas Laptop 6NM Manual Do Utilizador

Rev.1.10    Jul 01, 2005    page 183 of 318
REJ09B0124-0110

M16C/6N Group (M16C/6NK, M16C/6NM)

15. A/D Converter

This document is under development and its contents are subject to change.

CH0

CH1

CH2

MD0

MD1

TRG

ADST

CKS0

RW

RW

RW

RW

RW

RW

RW

RW

SCAN0

SCAN1

MD2

BITS

VCUT

OPA0

OPA1

CKS1

Function varies 
with each operation mode

0 0 : One-shot mode
0 1 : Repeat mode
1 0 : Single sweep mode
1 1 : Repeat sweep mode 0 or

Repeat sweep mode 1

0 : Software trigger
1 : ADTRG trigger

0 : A/D conversion disabled
1 : A/D conversion started

Refer to NOTE 2 for ADCON2 
Register

Trigger Select Bit

A/D Conversion Start Flag

Frequency Select Bit 0

Analog Input Pin Select Bit

A/D Operation Mode 
Select Bit 0

A/D Control Register 0 

(1)

b7

b6

b5

b4

b3

b2

b1

b0

Bit Symbol

Bit Name

Function

RW

RW

RW

RW

RW

RW

RW

RW

RW

Bit name

Function

Bit symbol

RW

Symbol

Address

After Reset

ADCON1

03D7h

00h

0 : 8-bit mode
1 : 10-bit mode

0 : Any mode other than repeat 

sweep mode 1

1 : Repeat sweep mode 1

0 : VREF not connected
1 : VREF connected

Refer to NOTE 2 for ADCON2 
Register

Function varies 
with each operation mode

A/D Sweep Pin Select Bit

8/10-Bit Mode Select Bit

VREF Connect Bit 

(2)

A/D Operation Mode
Select Bit 1

External Op-Amp 
Connection Mode Bit

Frequency Select Bit 1

Function varies 
with each operation mode

b7

b6

b5

b4

b3

b2

b1

b0

A/D Control Register 1 

(1)

Symbol

Address

After Reset

ADCON0

03D6h

00000XXXb

NOTE:

1. If the ADCON0 register is rewritten during A/D conversion, the conversion result will be indeterminate.

NOTES:

1. If the ADCON1 register is rewritten during A/D conversion, the conversion result will be indeterminate.
2. If the VCUT bit is reset from "0" (VREF unconnected) to "1" (VREF connected), wait for 1 

µs or more before

starting A/D conversion.

b4 b3