Samsung S3C2440A User Manual

Page 337

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S3C2440A RISC MICROPROCESSOR

USB DEVICE

13-9

INTERRUPT ENABLE REGISTER (EP_INT_EN_REG/USB_INT_EN_REG)

Corresponding to each interrupt register, The USB device controller also has two interrupt enable registers (except
resume interrupt enable). By default, usb reset interrupt is enabled.

If bit = 0, the interrupt is disabled.
If bit = 1, the interrupt is enabled.

Register Address

R/W

Description

Reset

Value

EP_INT_EN_REG 0x5200015C(L)

0x5200015F(B)

R/W

(byte)

Determine which interrupt is enabled

0xFF


EP_INT_EN_REG Bit MCU

USB

Description

Initial

State

EP4_INT_EN

[4]

R/W

R

EP4 Interrupt Enable bit
0 = Interrupt disable 1 = Enable

1

EP3_INT_EN

[3]

R/W

R

EP3 Interrupt Enable bit
0 = Interrupt disable 1 = Enable

1

EP2_INT_EN

[2]

R/W

R

EP2 Interrupt Enable bit
0 = Interrupt disable 1 = Enable

1

EP1_INT_EN

[1]

R/W

R

EP1 Interrupt Enable bit
0 = Interrupt disable 1 = Enable

1

EP0_INT_EN

[0]

R/W

R

EP0 Interrupt Enable bit
0 = Interrupt disable 1 = Enable

1

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