SH7018 datasheet(278/431 Pages) RENESAS

278 / 431 page

262

13.1.4

Table 13.2 shows the configuration of the A/D converter registers.

Table 13.2

Name

Abbreviation R/W

Initial Value

Address

Access Size

A/D data register AH

ADDRAH

H’00

H'FFFF8420

8,16

A/D data register AL

ADDRAL

H’00

H'FFFF8421

A/D data register BH

ADDRBH

H’00

H'FFFF8422

8,16

A/D data register BL

ADDRBL

H’00

H'FFFF8423

A/D data register CH

ADDRCH

H’00

H'FFFF8424

8,16

A/D data register CL

ADDRCL

H’00

H'FFFF8425

A/D data register DH

ADDRDH

H’00

H'FFFF8426

8,16

A/D data register DL

ADDRDL

H’00

H'FFFF8427

A/D control/status register

ADCSR

R/(W)* H'00

H'FFFF8428

8,16

A/D control register

ADCR

R/W

H'7F

H'FFFF8429

8,16

Note: * Only 0 can be written to bit 7 to clear the flag.

13.2

13.2.1

A/D Data Registers A to D (ADDRA to ADDRD)

The A/D data registers (ADDR) are 16-bit read-only registers for storing A/D conversion results.

There are four of these registers, ADDRA through ADDRD.

The A/D-converted data is 10-bit data which is transferred to the ADDR for the selected channel

for storage. The upper 8 bits of the converted data correspond to the upper byte of the ADDR, and

the lower 2 bits correspond to the lower byte. Bits 5 to 0 of the lower byte of the ADDR are

reserved. These bits are always read as 0. The write value should always be 0. Table 13.3 shows

the correspondence between the analog input channels and the ADDR registers.

The ADDR registers can be read by the CPU at all times. The upper byte is read directly, but the

lower byte data is transferred via a temporary register (TEMP). For details, see section 13.3, CPU

Interface.

The ADDR registers are initialized to H'0000 by a power-on reset.

SH7018 Datasheet(PDF) 278 Page - Renesas Technology Corp

SH7018 Datasheet(HTML) 278 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