Datasheet

Functional description of the SPI L99H01
40/53 DocID15567 Rev 6
Comments:
• RWD: Restarts the watchdog counter
• EXT_TS: The bit select the mode of the input pin TS/ACT_OFF:
– EXT_TS = low (active off):
TS/ACT_OFF pin is used as input to switch the H-bridge in tristate and back.
Details are discribed in Section 3.12.1.
– EXT_TS = high (thermal sensor interface):
TS/ACT_OFF pin is used as thermal sensor interface for external temperature
diodes. Details are discribed in Section 3.12.2.
• EXTTH[5:0]: Determines the threshold of the external thermal shutdown/warning
Table 40. Address 3 <03(hex)> : ApplReg3 – read/write
Bit76543210
Name RWD EXT_TS EXTTH_5 EXTTH_4 EXTTH_3 EXTTH_2 EXTTH_1 EXTTH_0
<default>00000000
Table 41. External threshold voltage, factor n
EXTTH_5 EXTTH_4 EXTTH_3 n
000 7
001 6
010 5
011 4
100 3
101 2
110 1
111 0
Table 42. External threshold voltage, factor m
EXTTH_2 EXTTH_1 EXTTH_0 m
000 7
001 6
010 5
011 4
100 3
101 2
110 1
111 0