TUSB2136 datasheet(31/53 Pages) TI

31 / 53 page

2−18

2.6.8

HUBPIDL: Hub PID Register (Low-Byte)

210

R/W

BIT

NAME

RESET

FUNCTION

7−0

D[7:0]

00h

Hub PID low-byte value

2.6.9

HUBPIDH: Hub PID Register (High-Byte)

210

D15

D14

D13

D12

D11

D10

R/W

BIT

NAME

RESET

FUNCTION

7−0

D[15:8]

00h

Hub PID high-byte value

2.6.10 HUBVIDL: Hub VID Register (Low-Byte)

210

R/W

BIT

NAME

RESET

FUNCTION

7−0

D[7:0]

00h

Hub VID low-byte value

2.6.11 HUBVIDH: Hub VID Register (High-Byte)

210

D15

D14

D13

D12

D11

D10

R/W

BIT

NAME

RESET

FUNCTION

7−0

D[15:8]

00h

Hub VID high-byte value

2.6.12 VIDSTA: VID/PID Status Register

This register is used to read the value on four external pins. The firmware can use this value to select one of the vendor

identification/product identifications (VID/PID) stored in memory. The TUSB2136 supports up to 16 unique VID/PIDs

with application code to support different products. This provides a unique opportunity for original equipment

manufacturers (OEMs) to have one device to support up to 16 different product lines by using S0−S3 to select VID/PID

and behavioral application code for the selected product.

210

RSV

R/O

BIT

NAME

RESET

FUNCTION

3−0

S[3:0]

VID/PID selection bits. These bits reflect the status of the external pins as defined by Table 2−6. Note that a

pin tied low is reflected as a 0 and a pin tied high is reflected as a 1.

7−4

RSV

Reserved = 0

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