ST STM32F103 series Reference Manual

Universal serial bus full-speed device interface (USB) RM0008
643/1128 DocID13902 Rev 15
23.5.4 USB register map
The table below provides the USB register map and reset values.
Table 177. Definition of allocated buffer memory
Value of
NUM_BLOCK[4:0]
Memory allocated
when BL_SIZE=0
Memory allocated
when BL_SIZE=1
0 (‘00000) Not allowed 32 bytes
1 (‘00001) 2 bytes 64 bytes
2 (‘00010) 4 bytes 96 bytes
3 (‘00011) 6 bytes 128 bytes
... ... ...
15 (‘01111) 30 bytes 512 bytes
16 (‘10000) 32 bytes N/A
17 (‘10001) 34 bytes N/A
18 (‘10010) 36 bytes N/A
... ... ...
30 (‘11110) 60 bytes N/A
31 (‘11111) 62 bytes N/A
Table 178. USB register map and reset values
Offset Register
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12
11
10
9 8 7 6 5 4 3 2 1 0
0x00
USB_EP0R
Reserved
CTR_RX
DTOG_RX
STAT_
RX
[1:0]
SETUP
EP
TYPE
[1:0]
EP_KIND
CTR_TX
DTOG_TX
STAT_
TX
[1:0]
EA[3:0]
Reset value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0x04
USB_EP1R
Reserved
CTR_RX
DTOG_RX
STAT_
RX
[1:0]
SETUP
EP
TYPE
[1:0]
EP_KIND
CTR_TX
DTOG_TX
STAT_
TX
[1:0]
EA[3:0]
Reset value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0x08
USB_EP2R
Reserved
CTR_RX
DTOG_RX
STAT_
RX
[1:0]
SETUP
EP
TYPE
[1:0]
EP_KIND
CTR_TX
DTOG_TX
STAT_
TX
[1:0]
EA[3:0]
Reset value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0x0C
USB_EP3R
Reserved
CTR_RX
DTOG_RX
STAT_
RX
[1:0]
SETUP
EP
TYPE
[1:0]
EP_KIND
CTR_TX
DTOG_TX
STAT_
TX
[1:0]
EA[3:0]
Reset value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

ST STM32F103 series Specifications

General

Brand	ST
Model	STM32F103 series
Category	Microcontrollers
Language	English