AT43USB370 datasheet(16/50 Pages) ATMEL

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AT43USB370

3340B–USB–12/03

USBP_DEVADDR_REG – Device Address Register (USB Processor)

The USB processor writes in this register.

• Bit 7:0 - UDEV_ADDR

Device address of the target device.

• Bit 31:8 - RS

Reserved. Reset to zero by the USB processor.

This register is used by the USB processor to write the address of the device for which a

request is being issued to the system processor software. After power-up or reset, this register

will contain the value of 0x00.

SYSP_EPADDR_REG – Endpoint Address Register (System Processor)

The system processor software writes in this register.

• Bit 3:0 - SEP_ADDR

Endpoint address of the target endpoint.

• Bit 31:4 - RS

Reserved. Must be reset to zero by the system processor software.

This register is used by the system processor software to specify the endpoint address. After

power-up or reset, this register will contain the value of 0x00

Bit

0x1C

UDEV_ADDR

USBP_DEVADDR_REG

Read/Write

USB Processor

System Processor

Initial Value

0x0

Mode

Host

Bit

0x20

SEP_

ADDR

SYSP_EPADDR_REG

Read/Write

USB Processor

System Processor

Initial Value

0x0

Mode

Host/Device

AT43USB370 Datasheet(PDF) 16 Page - ATMEL Corporation

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