[sdcc-devel] [ sdcc-Bugs-1589279 ] Uart0 Interrupt Priority bit name

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Bugs item #1589279, was opened at 2006-11-02 13:52
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Category: msc51(8051) target
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Steven Borley (sjborley)
Assigned to: Nobody/Anonymous (nobody)
Summary: Uart0 Interrupt Priority bit name

Initial Comment:
PS0 is missing in c8051f120.h

I suggest adding PS0 as an alternate for PS (UART0 
Interrupt priority), thus...

__sbit __at (0xBC) PS0;  /* UART0 Interrupt priority 
*/
__sbit __at (0xBC) PS; /* Alternate name */  

Precedence is set as both ES and ES0 are already 
defined in c8051f120.h

Some may say this is a feature request, not a bug, 
but SiLabs calls this bit PS0 (not PS) in the same 
way that the interrupt enable bit is called ES0 (not 
ES). Ref SiLabs datasheet for C8051F12x-13x, Rev. 
1.3, figure 11.

ES and PS ought to be retained for backward 
compatibility.

The following files are similarly missing PS0 
(references are to SiLabs datasheets)
  c8051f020.h (ref C8051F020/1/2/3 Rev 1.4, Fig 12.10)
  c8051f040.h (ref C8051F040/1/2/3/4/5/6/7 Rev 1.5, 
Fig 12.12)
  c8051f060.h (ref C8051F060/1/2/3/4/5/6/7 Rev 1.2, 
Fig 13.20)

Steven





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