TC1796
Peripheral Units (Vol. 2 of 2)
General Purpose Timer Array (GPTA)
User’s Manual 24-130 V2.0, 2007-07
GPTA, V2.0
24.2.6.5 GT-Algorithm
GTm_Control_Logic() “to be performed every GPTA clock”
Variables
Input, Local, Output variables of the cell (I, L, O)
Global variables
if (GTm.Run) then
if (Event on GTm.Clock_In[p] selected by GTm.Clock_Mux) then
GTm.Timer ++
if (Overflow of GTm.Timer) then
GTm.Timer = GTm.Reload_Value
trig(GTm.Service_Request_Trigger)
endif
endif
endif
Name m = [0, 1] for GT
p = [0 to 7] for Clock Bus
Short
Name
(*)GT
Used
(ILO)
Comment
GTm.Clock_In[p] *CINmp I Input coming from clock bus
GTm.Timer_Greater_Equal_Comp TGEm O Timer is greater or equal
GTm.Timer_Event TEVm O Signal for timer change
GTm.Service_Request_Trigger *SQTm O Service request line
Name m = [0, 1] for GT Short
Name
(*)GT
Size
(bits)
Function
GTm.Run *RUNm 1 Enables timer
GTm.Scale_Compare *SCOm 4 Selects compare flag
GTm.Clock_Mux *MUXm 3 Selects clock from clock bus
GTm.Request_Enable *RENm 1 Allows a request when timer overflows
GTm.Timer *TIMm 24 Timer value
GTm.Reload_Value *REVm 24 Reload value when timer overflows
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