at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 688

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

37.6
WARNING: The UDP peripheral clock in the Power Management Controller (PMC) must be enabled before any read/write
operations to the UDP registers, including the UDP_TXVC register.
Table 37-4.
Notes:
688
Offset
0x000
0x004
0x008
0x00C
0x010
0x014
0x018
0x01C
0x020
0x024
0x028
0x02C
0x030 + 0x4 * ( ept_num - 1 )
0x050 + 0x4 * ( ept_num - 1 )
0x070
0x074
0x078 - 0xFC
USB Device (UDP) User Interface
1. Reset values are not defined for UDP_ISR.
2. See Warning above the
AT91SAM9G20 Preliminary
Register Mapping
Register
Frame Number Register
Global State Register
Function Address Register
Reserved
Interrupt Enable Register
Interrupt Disable Register
Interrupt Mask Register
Interrupt Status Register
Interrupt Clear Register
Reserved
Reset Endpoint Register
Reserved
Endpoint Control and Status Register
Endpoint FIFO Data Register
Reserved
Transceiver Control Register
Reserved
”Register Mapping”
on this page.
Name
UDP_FRM_NUM
UDP_GLB_STAT
UDP_FADDR
–
UDP_IER
UDP_IDR
UDP_IMR
UDP_ISR
UDP_ICR
–
UDP_RST_EP
–
UDP_CSR
UDP_FDR
–
UDP_TXVC
–
(2)
Access
Read-only
Read-write
Read-write
–
Write-only
Write-only
Read-only
Read-only
Write-only
–
Read-write
–
Read-write
Read-write
–
Read-write
–
6384B–ATARM–15-Dec-08
Reset
0x0000_0000
0x0000_0000
0x0000_0100
–
0x0000_1200
–
–
0x0000_0000
–
0x0000_0000
0x0000_0000
–
0x0000_0100
–
(1)