M16CSLASH29 datasheet(269/499 Pages) RENESAS

269 / 499 page

15. A/D Converter

page 245

Figure 15.22 ADCON0 to ADCON2 Registers in Delayed Trigger Mode 0

A/D Control Register 0 (1)

Symbol

Address

After Reset

ADCON0

03D616

00000XXX2

b7 b6 b5 b4 b3 b2 b1 b0

Analog input pin

select bit

CH0

Bit Symbol

Bit Name

Function

CH1

CH2

A/D operation mode

select bit 0

MD0

MD1

Trigger select bit

Refer to Table 15.11

TRG

ADST

A/D conversion start flag

(2)

0: A/D conversion disabled

1: A/D conversion started

Frequency select bit 0

CKS0

A/D Control Register 1 (1)

Symbol

Address

After Reset

ADCON1

03D716

0016

Bit Name

Function

Bit Symbol

b7 b6 b5 b4 b3 b2 b1 b0

A/D sweep pin

select bit (2)

SCAN0

SCAN1

MD2

BITS

8/10-bit mode select bit

0: 8-bit mode

1: 10-bit mode

VCUT

Vref connect bit (3)

A/D operation mode

select bit 1

1: Vref connected

When selecting delayed trigger sweep mode 0

1 1 1: Set to 111b in delayed trigger

mode 0

b2 b1 b0

0 0: One-shot mode or delayed trigger mode

0,1

b4 b3

Frequency select bit 1

CKS1

0: Any mode other than repeat sweep

mode 1

Refer to Table 15.2

NOTES:

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

2. Do not write 1 in delayed trigger mode 0. When write, set to 0.

NOTES:

1. If the ADCON1 register is rewritten during A/D conversion, the conversion result will be undefined.

2. AN00 to AN07, AN20 to AN27, and AN30 to AN32 can be used in the same way as AN 0 to AN7. Use bits ADGSEL1 and

ADGSEL0 in the ADCON2 register to select the desired pin.

3. 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.

Refer to Table 15.2

(b7-b6)

b1 b0

0 0: AN0 to AN1 (2 pins)

0 1: AN0 to AN3 (4 pins)

1 0: AN0 to AN5 (6 pins)

1 1: AN0 to AN7 (8 pins)

Nothing is assigned. If necessary, set to 0.

When read, its content is 0

NOTES:

1. If the ADCON2 register is rewritten during A/D conversion, the conversion result will be undefined.

2. Set to 1 in delayed trigger mode 0.

A/D Control Register 2 (1)

Symbol

Address

After Reset

ADCON2

03D416

0016

b7 b6 b5 b4 b3 b2 b1 b0

A/D conversion method

select bit (2)

1: With sample and hold

Bit Symbol

Bit Name

Function

SMP

Reserved bit

Set to

A/D input group

select bit

0 0: Select port P10 group

0 1: Select port P9 group

1 0: Select port P0 group

1 1: Select port P1/P9 group

b2 b1

Frequency select bit 2

CKS2

ADGSEL0

ADGSEL1

(b3)

Nothing is assigned. If necessary, set to 0.

When read, its content is 0

(b7-b6)

Refer to Table 15.2

TRG1

Trigger select bit 1

Refer to Table 15.11

M16C/29 датащи(PDF) 269 Page - Renesas Technology Corp

M16C/29 датащи(HTML) 269 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL