TC1796
System Units (Vol. 1 of 2)
General Purpose I/O Ports and Peripheral I/O Lines
User’s Manual 10-4 V2.0, 2007-07
Ports, V2.0
The temperature compensation feature for pad output drivers (two inputs lines TC[1:0])
makes it possible to control the output driver characteristics automatically within
operating temperature range. The temperature compensation can be controlled for two
separate groups: for all high speed (class A2) outputs at GPIO ports and all EBU output
lines.
All GPIO lines of the TC1796 that are used by the GPTA modules (GPTA0, GPTA1,
LTCA2) have an emergency stop logic. This logic makes it possible to individually
disconnect GPTA outputs from the driving GPTA module outputs and to put them onto
a well defined logic state in an emergency case. In en emergency case, the content of
the port output register Pn_OUT is driven at the output pin instead of the GPTA module
output. The Emergency Stop Register Pn_EMR determines whether a GPTA output is
enabled or disabled in an emergency case.
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