KBox C-102 - User Guide, Rev. 1.0
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17.2.11.
Temperature Status Register TMPSR
This read only status register is used to get status of both the onboard temperature sensor and the FAN
implementation.
Table 39: Temperature Status Register TMPSR
0x118
Temperature Status Register TMPSR
Bit
7
6
5
4
3
2
1
0
Name
-
-
-
-
OVT
-
FTAS
FPWM
Access
-
-
-
-
R
-
R
R
Reset PS
0
0
0
0
na
0
0
0
OVT: Over temperature – This status bit is used to get the current status OVER_T# of onboard temperature sensor
LM73.
0 = Temperature within range
1 = LM73 detected temperature higher than present limit.
FTAS: Fan tacho status – This status bit indicates if fan is working correctly by analysis of fan tacho input signal
FAN_TACHO. This analysis is only done if FDIAG is set and the fan is activated (indicated by FPWM is set, too).
0 = Not active, fan maybe defective.
1 = Fan tacho pulses detected
FPWM: Fan PWM status – This status bit is based on activity on input signal FAN_PWM_OUT and informs if fan is
generally activated.
0 = Fan not active
1 = Fan active (Duty cycle greater than 0)
17.2.12.
Scratchpad Register SCR
This register can be read and written to any time and is not associated with internal logic. It may be used for example
for test purposes.
Table 40: Scratchpad Register SCR
0x11F
Scratchpad Register SCR
Bit
7
6
5
4
3
2
1
0
Name
SCR[7:0]
Access
R/W
Reset PS
$00
This register is set to $00 after power on and reset.
