Digi NS9215 Computer Hardware User Manual


 
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SYSTEM CONTROL MODULE
Timer 0-9 Reload Count and Compare register
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Register
Register bit
assignment
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Timer 0-9 Reload Count and Compare register
Addresses: A090 0028 / 002C / 0030 / 0034 / 0038 / 003C / 0040 / 0044 / 0048 /
004C
The Timer 0 to 9 Reload Count and Compare register holds the up/down reload and
compare values for timers 0 to 9.
Register
13 12 11 10 9 8 7 6 5 4 3 2 1 015 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 1630
Rel
Dir
Reserved
Rel Step
Bits Access Mnemonic Reset Description
D31:16 N/A Reserved N/A N/A
D15 R/W Rel Dir 0x0 Reload step direction
0 Subtract the reload step value from the original
reload register value to increase the overall
period.
1 Add the reload step value to the original reload
register value to decrease the overall period.
D14:00 R/W Rel Step 0x0 Reload step
This value is either added or subtracted from the
original low register value once each cycle.
13121110987654321015 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 1630
Comp Rel Cnt
Rel 15:0