TUSB3210 datasheet(28/45 Pages) TI

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2.6.3

USBMSK: USB Interrupt Mask Register

2.6.4

USBCTL: USB Control Register

TUSB3210

Universal Serial Bus

General-Purpose Device Controller

SLLS466F – FEBRUARY 2001 – REVISED AUGUST 2007

RSTR

SUSR

RESR

PWOFF

PWON

SETUP

RSV

STPOW

R/W

R/O

R/W

BIT

NAME

RESET

FUNCTION

STPOW

SETUP overwrite interrupt enable bit

STPOW = 0

STPOW interrupt disabled

STPOW = 1

STPOW interrupt enabled

RSV

Reserved = 0

SETUP

SETUP interrupt enable bit

SETUP = 0

SETUP interrupt disabled

SETUP = 1

SETUP interrupt enabled

PWON

Power-on interrupt enable bit

PWON = 0

PWON interrupt disabled

PWON = 1

PWON interrupt enabled

PWOFF

Power-off interrupt enable bit

PWOFF = 0

PWOFF interrupt disabled

PWOFF = 1

PWOFF interrupt enabled

RESR

Function resume interrupt enable

RESR = 0

Function resume interrupt disabled

RESR = 1

Function resume interrupt enabled

SUSR

Function suspend interrupt enable

SUSR = 0

Function suspend interrupt disabled

SUSR = 1

Function suspend interrupt enabled

RSTR

Function reset interrupt enable

RSTR = 0

Function reset interrupt disabled

RSTR = 1

Function reset interrupt enabled

Unlike the other registers, this register is cleared by the power-up-reset signal only. The USB reset cannot

reset this register (see the reset diagram in Figure 2-2).

CONT

RSV

RWUP

FRSTE

RWE

B/S

SIR

DIR

R/W

R/O

R/W

R/O

R/W

BIT

NAME

RESET

FUNCTION

DIR

As a response to a setup packet, the MCU decodes the request and sets or clears this bit to reflect the

data transfer direction.

DIR = 0

USB data OUT transaction (from host to TUSB3210)

DIR = 1

USB data IN transaction (from TUSB3210 to host)

SIR

SETUP interrupt status bit. This bit is controlled by the MCU to indicate to the hardware when the SETUP

interrupt is being served.

SIR = 0

SETUP interrupt is not served. MCU clears this bit before exiting the SETUP interrupt

routine.

SIR = 1

SETUP interrupt is in progress. MCU sets this bit when servicing the SETUP interrupt.

B/S

Bus-/self-power control bit

B/S = 0

The device is bus-powered.

B/S = 1

The device is self-powered.

Functional Description

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