Datasheet

518
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
35.6 USB Device Port (UDP) User Interface
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_TXCV register.
Notes: 1. Reset values are not defined for UDP_ISR.
2. See Warning above the ”Register Mapping” on this page.
Table 35-4. Register Mapping
Offset Register Name Access Reset
0x000 Frame Number Register UDP_FRM_NUM Read-only 0x0000_0000
0x004 Global State Register UDP_GLB_STAT Read-write 0x0000_0000
0x008 Function Address Register UDP_FADDR Read-write 0x0000_0100
0x00C Reserved – – –
0x010 Interrupt Enable Register UDP_IER Write-only
0x014 Interrupt Disable Register UDP_IDR Write-only
0x018 Interrupt Mask Register UDP_IMR Read-only 0x0000_1200
0x01C Interrupt Status Register UDP_ISR Read-only –
(1)
0x020 Interrupt Clear Register UDP_ICR Write-only
0x024 Reserved – – –
0x028 Reset Endpoint Register UDP_RST_EP Read-write
0x02C Reserved – – –
0x030 + 0x4 * (ept_num - 1) Endpoint Control and Status Register UDP_CSR Read-write 0x0000_0000
0x050 + 0x4 * (ept_num - 1) Endpoint FIFO Data Register UDP_FDR Read-write 0x0000_0000
0x070 Reserved – – –
0x074 Transceiver Control Register UDP_TXVC
(2)
Read-write 0x0000_0000
0x078 - 0xFC Reserved – – –