DocID13902 Rev 15 846/1128
RM0008 USB on-the-go full-speed (OTG_FS)
957
Figure 311. CSR memory map
1. x = 3 in device mode and x = 7 in host mode.
Global CSR map
These registers are available in both host and device modes.
0000h
Core global CSRs (1 Kbyte)
0400h
Host mode CSRs (1 Kbyte)
0800h
Device mode CSRs (1.5 Kbyte)
0E00h
Power and clock gating CSRs (0.5 Kbyte)
1000h
Device EP 0/Host channel 0 FIFO (4 Kbyte)
2000h
Device EP1/Host channel 1 FIFO (4 Kbyte)
3000h
Device EP (x – 1)
(1)
/Host channel (x – 1)
(1)
FIFO (4 Kbyte)
Device EP x
(1)
/Host channel x
(1)
FIFO (4 Kbyte)
Reserved
DFIFO
push/pop
to this region
2 0000h
3 FFFFh
Direct access to data FIFO RAM
for debugging (128 Kbyte)
DFIFO
debug read/
write to this
region
ai15615b
Table 201. Core global control and status registers (CSRs)
Acronym
Address
offset
Register name
OTG_FS_GOTGCTL 0x000 OTG_FS control and status register (OTG_FS_GOTGCTL) on page 850
OTG_FS_GOTGINT 0x004 OTG_FS interrupt register (OTG_FS_GOTGINT) on page 852
OTG_FS_GAHBCFG 0x008 OTG_FS AHB configuration register (OTG_FS_GAHBCFG) on page 854
OTG_FS_GUSBCFG 0x00C OTG_FS USB configuration register (OTG_FS_GUSBCFG) on page 855
OTG_FS_GRSTCTL 0x010 OTG_FS reset register (OTG_FS_GRSTCTL) on page 857
OTG_FS_GINTSTS 0x014 OTG_FS core interrupt register (OTG_FS_GINTSTS) on page 859
OTG_FS_GINTMSK 0x018 OTG_FS interrupt mask register (OTG_FS_GINTMSK) on page 863
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