TC1796
Peripheral Units (Vol. 2 of 2)
Fast Analog-to-Digital Converter (FADC)
User’s Manual 26-1 V2.0, 2007-07
FADC, V2.0
26 Fast Analog-to-Digital Converter (FADC)
The TC1796 contains two medium speed Analog-to-Digital Converters (ADC0 and
ADC1) with identical functionality and a third Fast Analog-to-Digital Converter (FADC).
ADC0 and ADC1 provide 2-3 µs conversion time (10-bit) and are intended mainly for
single-ended signals. The FADC offers conversion rates of less than 500 ns, thus
allowing sampling of high frequency signals. For slow and mid-range frequency signals,
heavy over-sampling can be performed to avoid the use of expensive filters.
ADC0 and ADC1 are described in Chapter 25. This chapter describes in detail the
FADC and contains the following sections:
• Functional description of the FADC Kernel (see Page 26-2)
• FADC kernel registers description (see Page 26-27)
• TC1796 implementation-specific details and registers of the FADC module, including
on-chip interconnections, service request control, address decoding, and clock
control (see Page 26-56)
Note: The FADC Kernel register names described in Section 26.2 will be referenced in
the TC1796 User’s Manual with the module name prefix “FADC_” for the ADC1
interface.