ASL4501SHN datasheet(31/43 Pages) NXP

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ASL4501SHN

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Product data sheet

Rev. 2 — 10 January 2018

31 of 43

NXP Semiconductors

ASL4501SHN

Four-phase boost converter

8.11.4.3

Internal registers

The ASL4501SHN uses the SPI registers to control some internal functions. In order to

avoid any unintended behavior of the device, do not modify these registers but leave them

all at their default value.

8.11.4.4

Diagnostic registers

The ASL4501SHN provides diagnostic data via some SPI registers. These registers are

read only, but error bits can be cleared via a write access to the register.

Table 41.

Internal register group

Address Name

Reset value

19h

internal 1

82h

-----

25h

internal 2

27h

-----

26h

internal 3

3Bh

-----

2Fh

internal 4

E8h

-----

30h

internal 5

09h

-----

Table 42.

Diagnostic register group overview

Address

Name

41h

CSB count low

CSB_cnt[7:0]

42h

CSB count high

CSB_cnt[15:8]

45h

battery voltage

V_VBAT[7:0]

46h

junction temperature

T_junction[7:0]

4Ch

calibration result register

Calib_value[7:0]

5Fh

diagnostic register

Vout1_ok Vout2_ok VGG_ok

Tj_err

VIN_UV

VIN_OV

SPI_err

VGG_err

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