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BD18378EFV-M

TSZ02201-0W1W0C500020-1-2

© 2015 ROHM Co., Ltd. All rights reserved.

www.rohm.co

m

TSZ22111・15・001

04. Dec. 2015 Rev.004

1=visible

0=not visible

u=unchanged



WRITE_LOCK command:

Register Name

Address

Data Code<7:0>

Comments

UNLOCK

69

x x

x

EN_ERR

PWM_MAP

EN_CH

CAL

All DIAG

Lock

o

Code:

default “11111”=unlocked

1=lock

0=don’t touch

x=don’t care

o

EN_ERR locks EN_ERR_PIN register

o

CAL locks CALx registers

o

EN_CH locks EN_CHANNEL register

o

PWM MAP locks PWM_MAPx registers

o

All DIAG locks EN_SHORT@ON, EN_OPEN@ON, EN_SHORT@OFF, EN_OPEN@OFF,

EN_SHORT_TO_GND, EN_PULL_UP@ON, EN_PULL_UP@OFF, EN_WLS registers



WRITE_UNLOCK command & READ_UNLOCK command:

Register Name

Address

Data Code<7:0>

Comments

UNLOCK

6A

x x

x

EN_ERR

PWM_MAP

EN_CH

CAL

All DIAG

unlock reg.

UNLOCK

A9

u u

u

EN_ERR

PWM_MAP

EN_CH

CAL

All DIAG

Read Unlock

o

Code for write:

Code for read:

default “11111”=unlocked

1=unlock

1=unlocked

0=don’t touch

0=locked

x=don’t care

u=unchanged

o

EN_ERR unlocks EN_ERR_PIN register

o

CAL unlocks CALx registers

o

EN_CH unlocks EN_CHANNEL register

o

PWM MAP unlocks PWM_MAPx registers

o

All DIAG unlocks EN_SHORT@ON, EN_OPEN@ON, EN_SHORT@OFF, EN_OPEN@OFF,

EN_SHORT_TO_GND, EN_PULL_UP@ON, EN_PULL_UP@OFF, EN_WLS registers



RESET_STATUS command:

Register Name

Address

Data Code<7:0>

Comments

RESET_STATUS

6B

x x

SHORT

to

GND

ANY

SHORT

OPEN

WLS

PWM_OK

TSD

POR

Clear status

flags

o

Code:

1=reset

0=don’t touch

x=don’t care

(Note1: TSD clears bot TSD130 and TSD180 flags)

(Note2: After clearing the flags with the RESET_STATUS command the registers will immediately reflect

the actual status)



SOFTWARE_POR command:

Register Name

Address

Data Code<7:0>

Comments

SOFTWARE_POR

6C

1

0

1

0

0

0

0

1

Resets all registers and sets

POR flag HIGH



Default Register setting:

Register

Default values

after POR

Comments

CALIBRATION<5:0>

(of all channels)

<000000>

Set all currents to min value