Changes between Version 20 and Version 21 of Component/Vci Xicu

Timestamp:

Apr 13, 2013, 11:01:01 PM (12 years ago)

Author:

alain

Comment:

--

Component/Vci Xicu

@@ -9 +9 @@
  * up to 32 internal programmable timer interrupts (PTI), 
  * up to 32 external hardware interrupt lines (HWI), 
- * up to 32 internal write-triggered interrupts (WTI). 
+ * up to 32 internal software-triggered interrupts (WTI). 
 All these interrupt sources can be routed to up to 32 interrupt outputs. Each output can 
 mask individual interrupt sources. 
@@ -52 +52 @@
 ||W   || XICU_MSK_HWI_DISABLE  || 01010 || OUT_INDEX ||
 ||R   || XICU_HWI_ACTIVE       || 01010 || OUT_INDEX ||
-||    || Reserved              || 01111 ||           || 
+||    || Reserved              || 01011 ||           || 
 ||R/W || XICU_MSK_WTI          || 01100 || OUT_INDEX ||
 ||W   || XICU_MSK_WTI_ENABLE   || 01101 || OUT_INDEX ||
@@ -58 +58 @@
 ||R   || XICU_WTI_ACTIVE       || 01110 || OUT_INDEX ||
 ||R   || XICU_PRIO             || 01111 || OUT_INDEX ||
-||    || Reserved              || 1---- ||          ||
-
+||R   || XICU_CONFIG           || 10000 || unused    ||
 Software can use the following macro to access registers:
 
@@ -168 +167 @@
 '''PRIO[OUT_INDEX] : Priority Encoder for IRQ[OUT_INDEX]'''
 
-This register holds the index of the highest priority, active and unmasked interrupt for each source type.
+This read-only register holds the index of the highest priority, active and unmasked interrupt for each source type.
  * On write : Unsupported 
  * On read : Get the three highest-priority active interrupt indexes for IRQ[OUT_INDEX]. 
@@ -180 +179 @@
  * Field PRIO_HWI (5 bits) contains the index of the highest priority hardware interrupt.
  * Field PRIO_WTI (5 bits) contains the index of the highest priority software interrupt.
+
+'''CONFIG : Global XICU configuration register'''
+
+This read-only register return the XICU hardware parameters.
+ * On write : Unsupported 
+ * On read : returns the IRQ_COUNT, WTI_COUNT, HWI_COUNT, PTI_COUNT values. Each value (between 0 & 32) coded on 6 bits
+
+||00IRQ_COUNT||00WTI_COUNT||00HWI_COUNT||00PTI_COUNT|| 
+
+ * IRQ_COUNT : total number of output IRQs.
+ * WTI_COUNT : total number of software triggered interrupts. 
+ * HWI_COUNT : total number of hardware interrupts. 
+ * PTI_COUNT : total number of programmable timer interrupts. 
 
 Complete specification is in [attachment:xicu-1.0.pdf].