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TC1796
System Units (Vol. 1 of 2)
System Control Unit
User’s Manual
5-45
V2.0, 2007-07
SCU, V2.0
TCS0
7
rw
Temperature Compensation 0 Source
0
B
Temperature compensation logic 0 is
controlled by the temperature compensation
control hardware.
1
B
Temperature compensation logic 0 is
controlled by software via bit field TCC0.
TCDIV
[15:8]
rw
Temperature Compensation Clock Divider
This value controls the input clock divider for the
temperature compensation logic.
TCV1
[17:16] rh
Temperature Compensation 1 Value
This bit field indicates the compensation value which
is generated for the temperature compensation
logic 1. TCV0 is fed to the temperature
compensation logic 0 outputs while bit TCS1 = 0.
00
B
Minimum driving strength required, i.e. very
low temperature.
...
B
...
11
B
Maximum driving strength required, i.e. very
high temperature (default after reset).
TCE1
19
rw
Temperature Compensation 1 Enable
0
B
Temperature compensation logic 1 is
deactivated (default after reset). The port
drivers are at maximum driver level.
1
B
Temperature compensation logic 1 is active.
THCOUNT is periodically updated.
TCC1
[21:20] rw
Temperature Compensation 1 Control
This 2-bit value is fed to the temperature
compensation logic 1 outputs while bit TCS1 = 1.
Encoding of TCC1 is equal to TCV1.
TCS1
23
rw
Temperature Compensation 1 Source
0
B
Temperature compensation logic 1 is
controlled by the temperature compensation
control hardware.
1
B
Temperature compensation logic 1 is
controlled by software via bit field TCC1.
0
2, 6,
18, 22,
[31:24]
r
Reserved
Read as 0; should be written with 0.
Field
Bits
Type Description