Renesas Renasas Single-Chip Microcomputer SH7086 Manual de usuario descargar pdf (Pagina 4)

SH7080 Group

A/D Conversion in Single-cycle Scan Mode

REJ06B0699-0100/Rev.1.00 January 2008 Page 2 of 19

1. Specification

In this sample application, the A/D converter for the SH7086 performs A/D conversion in single-cycle scan mode.

Three rounds of A/D conversion proceed on analog input channels 0 to 3 (AN0 to AN3). Converted data are stored in

the on-chip RAM. An overview of the operation is shown in figure 1.

A/D data registers 0 to 3

(ADDR0 to ADDR3)

Each holds 2 bytes.

On-chip RAM (24 bytes)

First round

of converted

data

Second round

of converted

data

Third round

of converted

data

ADDR0 data

ADDR1 data

ADDR2 data

ADDR3 data

ADDR0 data

ADDR1 data

ADDR2 data

ADDR3 data

ADDR0 data

ADDR1 data

ADDR2 data

ADDR3 data

2 bytes

2 bytes

2 bytes

Figure 1 Overview of A/D Conversion

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