TUSB3210 datasheet(32/45 Pages) TI

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2.9.3

VECINT: Vector Interrupt Register

TUSB3210

Universal Serial Bus

General-Purpose Device Controller

SLLS466F – FEBRUARY 2001 – REVISED AUGUST 2007

This register contains a vector value identifying the internal interrupt source that trapped to location 0003h.

Writing any value to this register removes the vector and updates the next vector value (if another interrupt

is pending). Note that the vector value is offset. Therefore, its value is in increments of two (bit 0 is set to

0). When no interrupt is pending, the vector is set to 00h. Table 2-8 is a table of the vector interrupt

values. As shown, the interrupt vector is divided into two fields; I[2:0] and G[3:0]. The I-field defines the

interrupt source within a group (on a first-come, first-served basis) and the G-field defines the group

number. Group G0 is the lowest and G15 is the highest priority.

RSV

R/W

R/O

BIT

NAME

RESET

FUNCTION

RSV

Reserved

3–1

I[2:0]

000

This field defines the interrupt source in a given group. See Table 2-8: Vector Interrupt Values. Bit 0 is

always 0; therefore, vector values are offset by two.

7–4

G[3:0]

0000

This field defines the interrupt group. I[2:0] and G[3:0] combine to produce the actual interrupt vector.

Table 2-8. Vector Interrupt Values

G[3:0] (Hex)

I[2:0] (Hex)

VECTOR (Hex)

INTERRUPT SOURCE

No interrupt

RESERVED

Output endpoint-1

Output endpoint-2

Output endpoint-3

4–7

18–1E

RESERVED

Input endpoint-1

Input endpoint-2

Input endpoint-3

4–7

28–2E

RESERVED

STPOW packet received

SETUP packet received

PWON interrupt

PWOFF interrupt

RESR interrupt

SUSR interrupt

RSTR interrupt

RESERVED

I2C TXE interrupt

I2C RXF interrupt

Input endpoint-0

Output endpoint-0

4–7

48–4E

RESERVED

5–F

90–FE

RESERVED

Functional Description

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