The 6530-002 and 6530-003 software use these data areas.

When your program wants to sue these locations, be aware they can be altered by the monitor or you can make the monitor misbehave.
Reading is OK, writing there requires you know what the monitor does there.

0069   00EF                        .ORG $00EF      
0070   00EF             ;       	MPU REG.  SAVX AREA IN PAGE 0   
0071   00EF             ;
0072   00EF             PCL     .BLOCK  1          ; PROGRAM CNT LOW
0073   00F0             PCH     .BLOCK  1          ; PROGRAM CNT HI
0074   00F1             PREG    .BLOCK  1          ; CURRENT STATUS REG.
0075   00F2             SPUSER  .BLOCK  1          ; CURRENT STACK POINT
0076   00F3             ACC     .BLOCK  1          ; ACCUMULATOR
0077   00F4             YREG    .BLOCK  1          ; Y INDEX
0078   00F5             XREG    .BLOCK  1          ; X INDEX
0079   00F6             ;
0080   00F6             ;       KIM FIXED AREA IN PAGE 0  
0081   00F6             ;
0082   00F6             CHKHI   .BLOCK  1
0083   00F7             CHKSUM  .BLOCK  1
0084   00F8             INL     .BLOCK  1          ; INPUT BUFFER
0085   00F9             INH     .BLOCK  1          ; INPUT BUFFER
0086   00FA             POINTL  .BLOCK  1          ; LSB OF OPEN CELL
0087   00FB             POINTH  .BLOCK  1          ; MSB OF OPEN CELL
0088   00FC             TEMP    .BLOCK  1
0089   00FD             TMPX    .BLOCK  1
0090   00FE             CHAR    .BLOCK  1
0091   00FF             MODE    .BLOCK  1
0092   0100             ;
0093   0100             ;       KIM FIXED AREA IN PAGE 23  (in 6530-002 RAM)
0095   17E7                     .ORG $17E7
0096   17E7             CHKL    .BLOCK  1
0097   17E8             CHKH    .BLOCK  1          ; CHKSUM
0098   17E9             SAVX    .BLOCK  3          
0099   17EC             VEB     .BLOCK  6          ; VOLATILE EXEC BLOCK (6-B)
0100   17F2             CNTL30  .BLOCK  1          ; TTY DELAY
0101   17F3             CNTH30  .BLOCK  1          ; TTY DELAY
0102   17F4             TIMH    .BLOCK  1
0103   17F5             SAL     .BLOCK  1          ; LOW STARTING ADDRESS
0104   17F6             SAH     .BLOCK  1          ; HI STARTING ADDRESS
0105   17F7             EAL     .BLOCK  1          ; LOW ENDING ADDRESS
0106   17F8             EAH     .BLOCK  1          ; HI ENDING ADDRESS
0107   17F9             ID      .BLOCK  1          ; 
0108   17FA             ;
0109   17FA             ;       INTERRUPT VECTORS 
0110   17FA             ;
0111   17FA             NMIV    .BLOCK  2          ; STOP VECTOR (STOP=1C00)
0112   17FC             RSTV    .BLOCK  2          ; RST VECTOR
0113   17FE             IRQV    .BLOCK  2          ; IRQ VECTOR (BRK=1C00)