0x00 ManufacturerAccess() and 0x44 ManufacturerBlockAccess()
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SLUUBD3D–September 2015–Revised September 2018
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SBS Commands
17.2.26 ManufacturerAccess() 0x002A Black Box Recorder Reset
This command resets the Black Box Recorder data in data flash for ease of manufacturing. When 0x002A
is written to ManufacturerAccess(), the Black Box Recorder data stored in data flash is cleared.
Status Condition Action
Reset 0x002A to ManufacturerAccess() Clear Black Box Recorder data in DF
17.2.27 ManufacturerAccess() 0x002B LED TOGGLE
This command toggles the LED display from off to on and from on to off to help streamline testing during
manufacturing. The status of the display is indicated through OperationStatus()[LED].
17.2.28 ManufacturerAccess() 0x002C LED Display Press
This command simulates a low-high-low detection of the DISP pin, activating the LED display according to
the LED Support data flash setting. This command forces RSOC to 100% in order to demonstrate all
LEDs in use, the full speed, and the brightness.
17.2.29 ManufacturerAccess() 0x002D CALIBRATION Mode
This command disables/enables entry into CALIBRATION mode. When 0x002D is written to
ManufacturerAccess() when ManufacturingStatus()[CAL_EN] = 0, then ManufacturingData() is enabled to
output ADC and CC raw data, is controllable with 0xF081 and 0xF082 on ManufacturerAccess(), and
ManufacturingStatus()[CAL_EN] is set to 1. If 0x002D is written to ManufacturerAccess() once again, then
ManufacturingData() returns default data and ManufacturingStatus()[CAL_EN] is cleared to 0.
17.2.30 ManufacturerAccess() 0x0030 Seal Device
This command seals the device for the field, disabling certain SBS commands and access to DF. When
0x0030 is written to ManufacturerAccess() when OperationStatus()[SEC1, SEC0] = 0,1 or 1,0, then the
bq78350-R1 device enters SEALED mode and OperationStatus()[SEC1, SEC0] is set to 1,1.
17.2.31 ManufacturerAccess() 0x0035 Security Keys
This is a read/write command that changes the Unseal and Full Access keys. To read the keys, sending
the SecurityKeys() command to either the ManufacturerAccess() 0x00 or the ManufacturerBlockAccess()
0x44 returns the keys on ManufacturerBlockAccess() or ManufacturerData().
To change the keys, the write operations must send through ManufacturerBlockAccess() 0x44 with
SecurityKeys() followed by the keys. Each parameter word entry must be sent in Little Endian.
Example:
Changing the Unseal key to 0x0123, 0x4567 and the Full Access key to 0x89AB, 0xCDEF:
SMBus write block: command = 0x44, block = 0x35 + 0x00 + 0x23 + 0x01 + 0x67 + 0x45 + 0xAB + 0x89
+ 0xEF + 0xCD
Byte0–1: SecurityKeys() command
Byte2–3: Unseal Key LSW
Byte4–5: Unseal Key MSW
Byte6–7: Full Access Key LSW
Byte8–9: Full Access Key MSW
17.2.32 ManufacturerAccess() 0x0037 Authentication Key
This command enters a new authentication key into the device.
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