diff --git a/data/nextreg.txt b/data/nextreg.txt index 9b38e04..f4942a0 100644 --- a/data/nextreg.txt +++ b/data/nextreg.txt @@ -1199,40 +1199,40 @@ progress is made in the main program. -- 0xF0 (240) => XDEV CMD -(R/W Issue 4 Only) (soft reset = 0x80) - * Select Mode - (R) - bit 7 = 1 if in select mode - bits 1:0 indicate currently selected device - 00 = none - 01 = Xilinx DNA - 10 = Xilinx XADC - (W) - bit 7 = 1 to enter select mode, 0 to enter selected device mode (no other bits have effect) - bit 6 = 1 to change selected device - bits 1:0 selected device - 00 = none - 01 = Xilinx DNA - 10 = Xilinx XADC - * Xilinx DNA Mode - (R) - bit 0 = dna bit (serial stream shifts left) - the first eight bits read will indicate the length of the following dna bits - (W) - bit 7 = 1 to enter select mode (write has no other effect) - otherwise causes dna string to reload, ready for fresh read - * Xilinx XADC Mode (Documented in Xilinx Series 7 UG480) - (R) - bit 6 = 1 if XADC is busy with conversion (BUSY) - bit 1 = 1 if XADC conversion completed since last read (EOC, read clears) - bit 0 = 1 if XADC conversion sequence completed since last read (EOS, read clears) - (W) - bit 7 = 1 to enter select mode (write has no other effect) - bit 6 = 1 to reset XADC (RESET) - bit 0 = 1 to start conversion (CONVST) +R/W Issue 4 Only - (soft reset = 0x80) + Select Mode + (R) + bit 7 = 1 if in select mode + bits 1:0 = indicate currently selected device + 00 = none + 01 = Xilinx DNA + 10 = Xilinx XADC + (W) + bit 7 = 1 to enter select mode, 0 to enter selected device mode (no other bits have effect) *** + bit 6 = 1 to change selected device ** + bits 1:0 = selected device + 00 = none + 01 = Xilinx DNA + 10 = Xilinx XADC + Xilinx DNA Mode + (R) + bit 0 = dna bit (serial stream shifts left) + the first eight bits read will indicate the length of the following dna bits + (W) + bit 7 = 1 to enter select mode (write has no other effect) * + otherwise causes dna string to reload, ready for fresh read + Xilinx XADC Mode (Documented in Xilinx Series 7 UG480) + (R) + bit 6 = 1 if XADC is busy with conversion (BUSY) + bit 1 = 1 if XADC conversion completed since last read (EOC, read clears) + bit 0 = 1 if XADC conversion sequence completed since last read (EOS, read clears) + (W) + bit 7 = 1 to enter select mode (write has no other effect) * + bit 6 = 1 to reset XADC (RESET) + bit 0 = 1 to start conversion (CONVST) * Re-enter select mode at any time by writing to the register with bit 7 set - * Select a device to communicate with by writing to the register with bits 6 & 7 set - * Exit select mode by writing zero to bit 7; thereafter the particular device is attached to the nextreg + ** Select a device to communicate with by writing to the register with bits 6 & 7 set + *** Exit select mode by writing zero to bit 7; thereafter the particular device is attached to the nextreg 0xF8 (248) => XADC REG (R/W Issue 4 Only) (hard reset = 0)