Figure 9. SPI mode diagram

CPHA=0

SCK

CPOL=0

SDO

SDI

Capture

strobe

SS

Bit 1

Bit 1

Bit 2

Bit 3

Bit 2

Bit 5

Bit 3

Bit 4

Bit 4

Bit 6

Bit 5

MSBit

Bit 6

LSBit

MSBit

LSBit

GIPG030420151131LM

8.6

8/16-bit selection (SEL1)

If SEL2 = H, SEL1 is used to select between two possible SPI configurations: the 8-bit SPI mode (SEL1 = L) and

the 16-bit SPI mode (SEL1 = H). The 8/16-bit SPI operation is described below.

8.7

Output enable (OUT_EN)

If SEL2 = H, the OUT_EN pin provides a fast way to disable all the outputs simultaneously. When the OUT_EN

pin is driven low for at least TRES, the outputs are disabled while fault conditions in the SPI register are latched. To

enable the outputs, the OUT_EN pin should be raised and the IC should be reprogrammed through the SPI

interface. As fault conditions are latched inside the IC, the SPI interface also works while the OUT_EN pin is

driven low. The SPI can be used to detect if a fault condition occurred before the reset event.

The device is ready to operate normally after a TSU period. The OUT_EN pin is the fastest way to disable all

outputs when a fault occurs.

Figure 10. Output channel enable/disable behavior

OUT_EN

Vin(i )

OUT( i)

GIPG030420151208LM

IPS8200HQ, IPS8200HQ-1

8/16-bit selection (SEL1)

DS14313 - Rev 2

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