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Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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FAQs
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Can the DMA transferring be suspended?
The conditions for suspension of DMA transferring are as follows; (1) Generating NMI interrupts. (2) Generating an address error by DMAC. (3) High level detection of DREQ#. (When it is detected in low level on external request mode) In cycle-steal mode, the suspension of DMA transferring is possible ...
Mar 25, 2009 -
Is there any way to realize software interruption?
Please examine the following method. 1. Use trap instruction By executing TRAPA instruction, the exception handling vector table of vector no. 32-63 can be used. 2. Use dummy interrupt from on-chip peripheral function For example, the following interruption can be possible. •Timer interrupt (Overflow interruption of MTU, Compare ...
Mar 25, 2009 -
Is there any note when the scan mode is used?
SuperH A/D converter has an on-chip sample hold circuit that keeps sampling voltage, and it has a parasitic capacitance about 20pF. Electric charge can be charged on parasitic capacitor when it is being sampled, on the scan mode that continuously does A/D conversion, the electric ...
Mar 25, 2009