TC1796
Peripheral Units (Vol. 2 of 2)
General Purpose Timer Array (GPTA)
User’s Manual 24-113 V2.0, 2007-07
GPTA, V2.0
register, and cleared or set by software when writing to the corresponding request bit in
SRSCx or SRSSx. When writing to SRSCx or SRSSx, several request flags can be
cleared at once by one write operation. Request flags of bit positions that are written with
0 are not changed. This feature allows fast, simple clearing or setting of request flags
without affecting other bits in the same service request state register.
Note that service request flag is always set independently of whether it is enabled or
disabled by the related module; but the service request line to the corresponding service
request group becomes only active if the corresponding service request is enabled by
the related module. Finally, each service request group y must be enabled by the enable
flag that is located in SRC register y.
Table 24-14 lists all of the service requests groups with its request sources. Note that
service requests of GTCs with an odd index number k can be individually redirected via
register SRNR to a service request group that is assigned mainly to four LTCs.
Table 24-14 GPTA Service Request Groups
Service
Request
Group
Number y
Request
Source 1
Request
Source 2
Request
Source 3
Request
Source 4
Request
Source 5
00 DCM0 rising DCM0 falling DCM0 comp. – –
01 DCM1 rising DCM1 falling DCM1 comp. – –
02 DCM2 rising DCM2 falling DCM2 comp. – –
03 DCM3 rising DCM3 falling DCM3 comp. – –
04PLL––––
05 GT0 GT1 – – –
06 GTC00 GTC01
1)
–––
07 GTC02 GTC03
1)
–––
08 GTC04 GTC05
1)
–––
09 GTC06 GTC07
1)
–––
10 GTC08 GTC09
1)
–––
11 GTC10 GTC11
1)
–––
12 GTC12 GTC13
1)
–––
13 GTC14 GTC15
1)
–––
14 GTC16 GTC17
1)
–––
15 GTC18 GTC19
1)
–––
16 GTC20 GTC21
1)
–––
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