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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