TC1796
Peripheral Units (Vol. 2 of 2)
General Purpose Timer Array (GPTA)
User’s Manual 24-75 V2.0, 2007-07
GPTA, V2.0
Data Output Line Control
The data output LTCkOUT can be controlled by the LTCk itself and by adjacent LTCs
with a lower order number. For this purpose, two communication signals between LTCs
are available that makes it possible to connect all LTCs via their M1I/M0I inputs and their
M1O/ M0O outputs respectively (Figure 24-52).
Figure 24-52 LTC Output Operation and Action Transfer
When bit LTCCTRk.OCM2 is cleared, the data output LTCkOUT is controlled only by the
local LTCk. A set, reset, toggle, or hold operation can be performed as selected by bits
LTCCTRk.OCM1 and LTCCTRk.OCM0 (see Table 24-4).
When bit LTCCTRk.OCM2 is set, the data output LTCkOUT is affected either by the local
LTCCTRk.OCM1 and LTCCTRk.OCM0 bits or by the M1I/M0I input lines, which are
connected to the adjacent LTCk-1 Global Timer output lines M1O/M0O. An enabled
LTCk event superimposes an action request generated simultaneously by the M1I/M0I
inputs.
When the bypass bit LTCCTRk.BYP is cleared, the M1O/M0O output lines logically OR
together the local LTCk events and, if enabled by bit LTCCTRk.OCM2, the action
requests received via the M1I/M0I input lines. When bit LTCCTRk.BYP is set to 1, a local
LTCk event will not modify the M1O/M0O output lines.
((Event and CEN) or OIA)
and (OCM != X00
B
)
MCA05961
0
FF
LTCkOUT
1
&
&
M1O
Event
OCM0
M0I
M1I
f
GPTA
OIA
BYP
OCM1OCM2
EOA
Reset
M0O
&
CEN
OUT
≥1
Note: All bits/flags shown in this figure are located in register LTCCTRk.
To Next Page
Loading...