Artesyn MVME5100, Programmer'S Reference Manual, Page: 175 / 318

Hawk PCI Host Bridge & Multi-Processor Interrupt Controller
MVME5100 Single Board Computer Programmer’s Reference (6806800H17B)
175
2.5.3.9 Timer Current Count Registers
T
TOGGLE. This bit toggles whenever the current count decrements to zero. The bit is cleared
when a value is written into the corresponding base register and the CI bit of the corresponding
base register transitions from a 1 to a 0.
CC
CURRENT COUNT. The current count field decrements while the Count Inhibit bit is the Base
Count Register is zero. When the timer counts down to zero, the Current Count register is
reloaded from the Base Count register and the timer’s interrupt becomes pending in MPIC
processing.
Table 2-80 Timer Current Count Registers
Offset
Timer 0 - $01100
Timer 1 - $01140
Timer 2 - $01180
Timer 3 - $011C0
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Name TIMER CURRENT COUNT
T CC
Operation R R
Reset 0 $00000000