USB7006 datasheet(16/55 Pages) MICROCHIP

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2021 Microchip Technology Inc.

DS00003715A-page 16

USB7006

3.3.3

BATTERY CHARGING CONFIGURATION (

CFG_BC_EN)

The

CFG_BC_EN configuration strap is used to configure the battery charging port settings of the device to one of six

settings. These modes are selected by the configuration of an external resistor on the

CFG_BC_EN pin. The resistor

options are a 200 kΩ pull-down, 200 kΩ pull-up, 10 kΩ pull-down, 10 kΩ pull-up, 10 Ω pull-down, and 10 Ω pull-up, as

shown in Table 3-3.

3.3.4

PF[31:3] CONFIGURATION (CFG_STRAP[2:1])

The USB7006 provides 29 programmable function pins (

PF[31:3]). These pins can only be configured to 1 predefined

configuration via the

CFG_STRAP[2:1] pins. This configuration is selected via external resistors on the

CFG_STRAP[2:1] pins, as detailed in Table 3-4. Resistor values and combinations not detailed in Table 3-4 are reserved

and should not be used.

A summary of the configuration pin assignments is provided in Table 3-5. For details on behavior of each programmable

function, refer to Table 3-6.

TABLE 3-3:

CFG_BC_EN RESISTOR ENCODING

CFG_BC_EN Resistor Value

Setting

200 kΩ Pull-Down

Battery charging not enable on any port

200 kΩ Pull-Up

BC1.2 DCP and CDP battery charging enabled on Port 1

10 kΩ Pull-Down

BC1.2 DCP and CDP battery charging enabled on Ports 1, 2

10 kΩ Pull-Up

BC1.2 DCP and CDP battery charging enabled on Ports 1, 2, 3

10 Ω Pull-Down

BC1.2 DCP and CDP battery charging enabled on Ports 1, 2, 3, 4

10 Ω Pull-Up

BC1.2 DCP and CDP battery charging enabled on Ports 1, 2, 3, 4, 5, 6

Note:

CFG_STRAP3 is not used and must be pulled-down to ground via a 200 k resistor.

TABLE 3-4:

CFG_STRAP[2:1] RESISTOR ENCODING

Mode

CFG_STRAP2

Resistor Value

CFG_STRAP1

Resistor Value

Configuration 3

200 kΩ Pull-Down

10 kΩ Pull-Down

Note:

Configurations 1 and 2 are not used in the USB7006.

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