A/D Data Registers A To H (Addra To Addrh) - Renesas H8S/2100 Series Hardware Manual

16-bit single-chip microcomputer

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A/D Data Registers A to H (ADDRA to ADDRH)

There are eight 16-bit read-only ADDR registers, ADDRA to ADDRH, used to store the results of

A/D conversion. The ADDR registers which store a conversion result for each channel are shown

in table 22.3.

The 10-bit conversion data is stored in bits 15 to 6. The lower six bits are always read as 0.

The data bus between the CPU and the A/D converter is sixteen bits wide. The data can be read

directly from the CPU. ADDR must not be accessed in 8-bit units and must be accessed in 16-bit

Table 22.3 Analog Input Channels and Corresponding ADDR

Analog Input Channel

Channel Set 0 (CH3 = 0)

Channel Set 1 (CH3 = 1)

Section 22 A/D Converter

A/D Data Register to Store A/D

Conversion Results

Rev. 1.00 Apr. 28, 2008 Page 731 of 994

REJ09B0452-0100

H8s/2117r series R4f2117r