TUSB3200CPAH datasheet(89/93 Pages) TI

89 / 93 page

A–41

A.5.7.3 Interrupt Vector Register (VECINT – Address FFB2H)

The interrupt vector register contains a 6-bit vector value that identifies the interrupt source for the INT0 input to the

MCU. All of the TUSB3200 internal interrupt sources and the external interrupt input to the device are ORed together

to generate the internal INT0 signal to the MCU. When there is not an interrupt pending, the interrupt vector value

will be set to 24h. To clear any interrupt and update the interrupt vector value to the next pending interrupt, the MCU

should simply write any value to this register. The interrupt priority is fixed in order, ranging from vector value 1Fh with

the highest priority to vector value 00h with the lowest priority.

Bit

Mnemonic

—

IVEC5

IVEC4

IVEC3

IVEC2

IVEC1

IVEC0

Type

Default

BIT

MNEMONIC

NAME

DESCRIPTION

—

Reserved

Reserved for future use

—

Reserved

Reserved for future use

5:0

IVEC(5:0)

Interrupt vector

00h = USB out endpoint 0

01h = USB out endpoint 1

02h = USB out endpoint 2

03h = USB out endpoint 3

04h = USB out endpoint 4

05h = USB out endpoint 5

06h = USB out endpoint 6

07h = USB out endpoint 7

08h = USB in endpoint 0

09h = USB in endpoint 1

0Ah = USB in endpoint 2

0Bh = USB in edpoint 3

0Ch = USB in endpoint 4

0Dh = USB in endpoint 5

0Eh = USB in endpoint 6

0Fh = USB in endpoint 7

10h = USB setup stage transaction over-write

11h = Reserved

12h = USB setup stage transaction

13h = USB pseudo start-of-frame

14h = USB start-of-frame

15h = USB function resume

16h = USB function suspend

17h = USB function reset

18h = C-port receive data register full

19h = C-port transmit data register empty

1Ah = Reserved

1Bh = Reserved

1Ch = I2C receive data register full

1Dh = I2C transmit data register empty

1Eh = Reserved

1Fh = External interrupt input

20h – 23h = Reserved

24h = No interrupt pending

25h – 3Fh = Reserved

TUSB3200CPAH 数据表(PDF) 89 Page - Texas Instruments

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