SH7706 Datasheet, PDF (579/749 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7700 Series

Section 19 A/D Converter (ADC)
19.2 Input/Output Pin
Table 19.1 summarizes the A/D converter's input pins. AV_CC and AV_SS are the power supply for
the analog circuits in the A/D converter. AVcc also functions as the A/D converter reference
voltage.
Table 19.1 A/D Converter Pins
Pin Name
Analog power-supply pin
Analog ground pin
Analog input pin 0
Analog input pin 1
Analog input pin 2
Analog input pin 3
A/D external trigger input
pin
Abbreviation
AVcc
AVss
AN0
AN1
AN2
AN3
ADTRG
I/O
Input
Input
Input
Input
Input
Input
Input
Function
Analog power supply
Analog ground and reference voltage
Group 0 analog inputs
External trigger input for starting A/D
conversion
19.3 Register Description
The A/D converter has the following registers. Refer to section 23, List of Registers, for more
details of the addresses and access sizes.
• A/D data register A (ADDRA)
The upper and lower bytes of ADDRA may be represented by ADDRAH and ADDRAL,
respectively.
• A/D data register B(ADDRB)
The upper and lower bytes of ADDRB may be represented by ADDRBH and ADDRBL,
respectively.
• A/D data register C (ADDRC)
The upper and lower bytes of ADDRC may be represented by ADDRCH and ADDRCL,
respectively.
• A/D data register D (ADDRD)
The upper and lower bytes of ADDRD may be represented by ADDRDH and ADDRDL,
respectively.
• A/D control/status register (ADCSR)
• A/D control register (ADCR)
Rev. 5.00 May 29, 2006 page 531 of 698
REJ09B0146-0500