Configuration Handbook - Kamami.pl

Passive Serial ConfigurationFigure 8–14 shows how to configure multiple Mercury, APEX 20K (2.5 V),ACEX 1K, and FLEX 10K devices with a download cable.Figure 8–14. Multi-Device PS Configuration Using a USB Blaster, MasterBlaster, ByteBlaster II, orByteBlasterMV CableVCC (1)1 kΩ (2)VCC (1)1 kΩGNDGNDMercury, APEX 20K (2.5-V),ACEX 1K or FLEX 10K Device 1MSEL0MSEL1nCECONF_DONEnSTATUSDCLKnCEOVCC (1)1 kΩVCC (1)1 kΩ1 kΩVCC (1)(2)Download Cable10-Pin Male Header(PS Mode)Pin 1VCCGNDVIO (3)DATA0nCONFIGGNDMSEL0MSEL1CONF_DONEnSTATUSDCLKGNDnCEnCEON.C.DATA0nCONFIGMercury, APEX 20K (2.5-V),ACEX 1K or FLEX 10K Device 2Notes to Figure 8–14:(1) The pull-up resistor should be connected to the same supply voltage as the USB Blaster, MasterBlaster (VIO pin),ByteBlaster II or ByteBlasterMV cable.(2) The pull-up resistors on DATA0 and DCLK are only needed if the download cable is the only configuration schemeused on your board. This is to ensure that DATA0 and DCLK are not left floating after configuration. For example, ifyou are also using a configuration device, the pull-up resistors on DATA0 and DCLK are not needed.(3) Pin 6 of the header is a VIO reference voltage for the MasterBlaster output driver. VIO should match the device’sV CCIO . Refer to the MasterBlaster Serial/USB Communications Cable Data Sheet for this value. In the ByteBlasterMV, thispin is a no connect. In the USB Blaster and ByteBlaster II, this pin is connected to nCE when it is used for ActiveSerial programming, otherwise it is a no connect.8–32 Altera CorporationConfiguration Handbook, Volume 1 August 2005