VTS(VisuaI Test Shelf) V3.4.7的源代碼。VTS是美國國家聯(lián)邦實驗室N.I.S.T.所開發(fā)的BACnet協(xié)議下的報文的測試工具。BACnet（A Data Communication Protocol for
Building Automation and Control Network）是由美國采暖、制冷和空調(diào)工程師協(xié)會制定的開放樓宇自動控制網(wǎng)絡(luò)數(shù)據(jù)通信協(xié)議。
(1) This pin may function as either a JTAG port or a user I/O pin. If the device is configured to use the JTAG
ports for in-system programming, this pin is not available as a user I/O pin.
(2) The user I/O pin count includes dedicated input pins and all I/O pins.
