SH7101 Datasheet, PDF (359/486 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 11 A/D Converter
11. A/D Converter
This LSI includes a successive approximation type 10-bit A/D converter. The block diagram of the
A/D converter is shown in figure 11.1.
11.1 Features
• 10-bit resolution
• Input channels
⎯ 8 channels (two independent A/D conversion modules)
• Conversion time: 6.7 μs per channel (at Pφ = 20-MHz operation)
5.4 µs per channel (at Pφ = 25-MHz operation)
• Three operating modes
⎯ Single mode: Single-channel A/D conversion
⎯ Continuous scan mode: 1 to 4 channels
⎯ Single-cycle scan mode: 1 to 4 channels
• Data registers
⎯ Conversion results are held in a 16-bit data register for each channel
• Sample and hold function
• Three methods for conversion start
⎯ Software
⎯ Conversion start trigger from multifunction timer pulse unit (MTU)
⎯ External trigger signal
• Interrupt source
⎯ An A/D conversion end interrupt request (ADI) can be generated
• Module standby mode can be set
ADCMS20B_010020030200
Rev.2.00 Sep. 27, 2007 Page 325 of 448
REJ09B0394-0200