L6360 datasheet(23/65 Pages) STMICROELECTRONICS

23 / 65 page

L6360

Device configuration

Doc ID 022817 Rev 2

23/65

Status register

Read only

Reset Value: [00000000]

Figure 9.

Status register

The status register stores diagnostic information. It can be read to check the status of the

run-time of the device (faults, warning, transmission corrupted, etc.).

When a fault condition occurs, a bit (corresponding to the fault condition) in the status

If there is no persistent fault condition, the status register is cleared after a successful

current read.

Bit 7 = PO:

Power-on (L+ line).

This bit indicates the status of L+ line voltage.

If the voltage goes under the lower threshold (VLTHOFF) and ENL+ is

high, the PO bit is set. It is reset after a successful current read if the L+

voltage has returned above the upper threshold VLTHON and the read

operation has begun after the bit has been set.

When the PO bit is high, IRQ is generated.

During ENL+ transition (from low-level to high-level) and during L+ line

voltage transition, a fault condition is reported setting the PO bit and

activating the IRQ pin. To reset the fault a successful current read is

necessary.

L6360 数据表(PDF) 23 Page - STMicroelectronics