Datasheet

Data Sheet ADP8866

Rev. A | Page 23 of 52

Manufacturer and Device ID (MFDVID)—Register 0x00

Multiple device revisions are tracked by the device ID field. This is a read-only register.

Table 9. MFDVID Manufacturer and Device ID Bit Map

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Manufacture ID Device ID

0 1 0 1 0 0 1 1

Mode Control Register (MDCR)—Register 0x01

Table 10. MDCR Bit Map

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Reserved INT_CFG NSTBY ALT_GSEL GDWN_DIS SIS_EN Reserved BL_EN

Table 11.

Bit Name Bit No. Description

N/A 7 Reserved.

INT_CFG 6 Interrupt configuration.

1 = processor interrupt deasserts for 50 μs and reasserts with pending events.

0 = processor interrupt remains asserted if the host tries to clear the interrupt while there is a pending event.

NSTBY

1 = device is in normal mode.

0 = device is in standby, only I

C is enabled.

ALT_GSEL 4 1 = charge pump gain is automatically set to 1× every time that the BLMX (Register 0x13) is written to.

0 = writing to BLMX (Register 13) has no unique effect on the charge pump gain.

GDWN_DIS 3 1 = the charge pump does not switch down in gain until all LEDs are off. The charge pump switches up in gain

as needed. This feature is useful if the ADP8866 charge pump is used to drive an external load.

0 = the charge pump automatically switches up and down in gain. This provides optimal efficiency but is not

suitable for driving external loads (other than those connected to the ADP8866 diode drivers).

SIS_EN 2 Master enable for independent sinks.

1 = enables all LED current sinks designated as independent sinks. This bit has no effect if any of the SCx_EN

bits that are part of the independent sinks group in Register 0x1A and Register 0x1B are set.

0 = disables all sinks designated as independent sinks. This bit has no effect if any of the SCx_EN bits that are

part of the independent sinks group in Register 0x1A and Register 0x1B are set.

N/A 1 Reserved.

BL_EN

Master enable for backlight sinks.

1 = enables all LED current sinks designated as backlight.

0 = disables all sinks designated as backlight.