SH7101 datasheet(377/560 Pages) RENESAS

377 / 560 page

Section 11 A/D Converter

Rev.1.00 Sep. 18, 2008 Page 343 of 522

REJ09B0069-0100

Table 11.3

A/D Conversion Time (Single Mode)

CKS1 = 0

CKS1 = 1

CKS0 = 0

CKS0 = 1

CKS0 = 0

CKS0 = 1

Item

Symbol

Min. Typ. Max.

A/D conversion

start delay time

—

Input sampling

time

SPL

—

256

—

128

—

A/D conversion

time

CONV

1024 —

1055

515

—

530

259

—

266

131

—

134

Note:

All values represent the number of states for P

φ.

Table 11.4

A/D Conversion Time (Scan Mode)

CKS1

CKS0

Conversion Time (State)

1024 (Fixed)

512 (Fixed)

256 (Fixed)

128 (Fixed)

11.4.5

A/D Converter Activation by MTU or MMT

The A/D converter can be independently activated by an A/D conversion request from the interval

timer of the MTU or MMT.

To activate the A/D converter by the MTU or MMT, set the A/D trigger select register (ADTSR).

After this register setting has been made, the ADST bit in ADCR is automatically set to 1 when an

A/D conversion request from the interval timer of the MTU or MMT occurs. The timing from

setting of the ADST bit until the start of A/D conversion is the same as when 1 is written to the

ADST bit by software.

11.4.6

External Trigger Input Timing

A/D conversion can be externally triggered. When the TRGS0 and TRGS1 bits are set to 00 or 01

in ADTSR, external trigger input is enabled at the

ADTRG pin. A falling edge of the ADTRG pin

sets the ADST bit to 1 in ADCR, starting A/D conversion. Other operations, in both single and

scan modes, are the same as when the ADST bit has been set to 1 by software. Figure 11.4 shows

the timing.

SH7101 Datasheet(PDF) 377 Page - Renesas Technology Corp

SH7101 Datasheet(HTML) 377 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

Datasheet Download

Link URL