Texas Instruments TMS320DM357 manual USB End of Interrupt Register Eoir, Vector

Models: TMS320DM357

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Registers

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4.12 USB End of Interrupt Register (EOIR)

The USB End of Interrupt Register (EOIR) is shown in Figure 27 and described in Table 28.

Figure 27. USB End of Interrupt Register (EOIR)

31

 

 

 

 

16

 

 

 

Reserved

 

 

 

 

 

R-0

 

15

 

 

8

7

0

 

 

Reserved

 

VECTOR

 

 

R-0

 

R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n= value after reset

 

 

 

 

Table 28. USB End of Interrupt Register (EOIR) Field Descriptions

Bit

Field

Value

Description

 

 

31-8

Reserved

0

Reserved

 

 

7-0

VECTOR

0-FFh

EOI Vector

 

 

Allows the CPU to acknowledge completion of an interrupt by writing to the EOI. An eoi_write signal will be generated, the EOI vector will be updated to the written value, and another interrupt will be triggered if interrupt sources remain. Software should always write zeros for the EOI vector value.

4.13 USB Interrupt Vector Register (INTVECTR)

The USB Interrupt Vector Register (INTVECTR) is shown in Figure 28 and described in Table 29.

Figure 28. USB Interrupt Vector Register (INTVECTR)

31

0

VECTOR

R-0

LEGEND: R = Read only; -n= value after reset

Table 29. USB Interrupt Vector Register (INTVECTR) Field Descriptions

Bit

Field

Value

Description

31-0

VECTOR

0-FFFF FFFFh

Input Interrupt Vector

 

 

 

Recycles the Interrupt Vector input to be read by the CPU

92

Universal Serial Bus (USB) Controller

SPRUGH3–November 2008

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Texas Instruments TMS320DM357 manual USB End of Interrupt Register Eoir, USB Interrupt Vector Register Intvectr