SH7041A datasheet(619/923 Pages) RENESAS

부품명	SH7041A

상세설명	Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

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Table 16.4

A/D Conversion Time (Single Mode)

CKS=0

CKS=1

Notation Min

Typ

Max

Min

Typ

Max

A/D conversion start delay time t

—17

—9

Input sampling time

SPL

—

64—

—

32—

A/D conversion time

CCNV

259

—

266

131

—

134

Note:

Numbers in the table are in states (t

cyc ).

16.4.4

External Trigger Input Timing

It is possible to start A/D conversion from an external trigger input. External trigger input is input

from the

ADTRG pin or MTU when the TRGE bit of the A/D control register (ADCR) is set to 1.

A/D conversion is started when the ADST bit of the A/D control/status register (ADCSR) is set to

1 by the

ADTRG input pin last transition edge or MTU trigger. Other operations, regardless of

whether in the single or scan mode, are the same as when setting the ADST bit to 1 with the

software.

Figure 16.6 shows an example of external trigger input timing.

ADTRG

External trigger

signal

A/D conversion

ADST

Figure 16.6 External Trigger Input Timing

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