AX68004LF datasheet(18/57 Pages) ASIX

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AX6800x

2/4-Port USB KVM Switch SoC

Table 1-5: USB Downstream (Host Controller) VBUS Control Pin Description

USB Downstream VBUS control Pins

Pin Name

Type

Pin No

Pin Description

100

D0_VBEN O5

Downstream Port 0 VBUS Enable

(1).

D0_VOC

I5,PU

Downstream Port 0 VBUS Over Current detection

(1).

D1_VBEN O5

Downstream Port 1 VBUS Enable

(2).

D1_VOC

I5,PU

Downstream Port 1 VBUS Over Current detection

(2).

D2_VBEN O5

Downstream Port 2 VBUS Enable.

D2_VOC

I5,PU

Downstream Port 2 VBUS Over Current detection.

D3_VBEN O5

Downstream Port 3 VBUS Enable.

D3_VOC

I5,PU

Downstream Port 3 VBUS Over Current detection.

Note 1: To enable these multi-function pins, please set USB_D0_PSEL = 0 in HWCFG offset 0x003 or

USB_D0_PSEL = 1 but MP0_10_PSEL = 0 in HWCFG offset 0x001.

Note 2: To enable these multi-function pins, please set USB_D1_PSEL = 0 in HWCFG offset 0x003 or

USB_D1_PSEL = 1 but MP0_32_PSEL = 0 in HWCFG offset 0x001.

Table 1-6: I2C Pin Description

I2C Interface

Pin Name

Type

Pin No

Pin Description

64 100

SCL

O5/T/4m 7

I2C Serial Clock line for I2C master controller.

SCL is a tri-stateable output, which requires an external pull-up resistor.

SDA

B5/T/4m 6

I2C Serial Data line for I2C master controller.

SDA is a tri-stateable output, which require an external pull-up resistor.

U0_SCL

I5/4m

I2C Upstream (slave) controller 0 Serial Clock line

(3).

U0_SCL requires an external pull-up resistor.

U0_SDA

B5/T/4m 5

I2C Upstream (slave) controller 0 Serial Data line

(3).

U0_SDA is a tri-stateable output, which requires an external pull-up resistor.

U1_SCL

I5/4m

I2C Upstream (slave) controller 1 Serial Clock line

(4).

U1_SCL requires an external pull-up resistor.

U1_SDA

B5/T/4m 2

I2C Upstream (slave) controller 1 Serial Data line

(4).

U1_SDA is a tri-stateable output, which requires an external pull-up resistor.

U2_SCL

I5/4m

I2C Upstream (slave) controller 2 Serial Clock line.

U2_SCL requires an external pull-up resistor.

U2_SDA

B5/T/4m -

I2C Upstream (slave) controller 2 Serial Data line.

U2_SDA is a tri-stateable output, which requires an external pull-up resistor.

U3_SCL

I5/4m

I2C Upstream (slave) controller 3 Serial Clock line.

U3_SCL requires an external pull-up resistor.

U3_SDA

B5/T/4m -

I2C Upstream (slave) controller 3 Serial Data line.

U3_SDA is a tri-stateable output, which requires an external pull-up resistor.

Note 3: To enable these multi-function pins, please set I2C_U0_PSEL = 0 in HWCFG offset 0x002 or

I2C_U0_PSEL = 1 but MP0_74_PSEL = 0 in HWCFG offset 0x001.

Note 4: To enable these multi-function pins, please set I2C_U1_PSEL = 0 in HWCFG offset 0x002 or

I2C_U1_PSEL = 1 but MP0_74_PSEL = 0 in HWCFG offset 0x001.

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