L9300 datasheet(117/178 Pages) STMICROELECTRONICS

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[14] Latch_D0: Latched D0, set when bit0 has been decoded high in any of previous messages (only for VDA sensor),

cleared on read

0: no prior bit0 faults

1: prior message(s) contained bit0 fault

Reset events: VB_UV, GND_LOSS, POR, DATA READ

[13:12] LCID[1:0]: Logical Channel ID

00: ch1

01: ch2

10: ch3

11: ch4

Reset events: VB_UV, GND_LOSS, POR

[11:0] WSS DATA: 12-bit data from wheel speed decoder

VDA data format:

DATA[7:0] Data bits

DATA[11:8] Counter bits

PWD data format:

DATA[8:0] Pulse Data bits

Reset events: VB_UV, GND_LOSS, POR

If Bit 15 = 1 ==> Fault Condition

[14] On/Off: Channel on/off status, cleared by Reset Event or when the channel is commanded OFF via SPI WSICTRL or

when the STG bit is set with WSITEMP bit

0: Off

1: On

Reset events: VB_UV, GND_LOSS, POR

[13:12] LCID[1:0]: Logical Channel ID

00: ch1

01: ch2

10: ch3

11: ch4

Reset events: VB_UV, GND_LOSS, POR

[11] ∆Ith2 Saturated: Delta Error bit (Enabled only if WSICTRL[9] = 0)

0: no fault

1: fault

Reset events: VB_UV, GND_LOSS, POR, DATA READ

[10] ∆Ith1 Saturated: Delta Error bit (Enabled only if WSICTRL[9] = 0)

0: no fault

1: fault

Reset events: VB_UV, GND_LOSS, POR, DATA READ

[9] STG: Short to ground (in current limit condition)

0: no fault

1: fault

Reset events: VB_UV, GND_LOSS, POR, DATA READ

[8] STB: Short to battery

0: no fault

1: fault

Reset events: VB_UV, GND_LOSS, POR, DATA READ

L9300

SPI interface and register mapping

DS12258 - Rev 5

page 117/178

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