ST STM32L4+ Series Reference Manual page 2203

RM0432
1
init_reg(ch_2)
1
2
set_ch_en
(ch_2)
2
5
set_ch_en
(ch_2)
set_ch_en
(ch_2)
5
read_rx_sts
read_rx_fifo
set_ch_en
(ch_2)
7
read_rx_stsre
ad_rx_fifo
read_rx_sts
7
Disable
(ch_2) 9
read_rx_sts 11
De-allocate
(ch_2)
13
1. The grayed elements are not relevant in the context of this figure.
Figure 629. Bulk/control IN transactions
Application AHB
init_reg(ch_1)
write_tx_fifo
(ch_1)
MPS
write_tx_fifo
(ch_1)
MPS
RxFLvl interrupt
MPS
De-allocate
(ch_1)
RxFLvl interrupt
MPS
RxFLvl interrupt
XferCompl interrupt
RxFLvl interrupt
ChHltd interrupt
Host
1 3
c ch 1 ch_1
1
ch_2
ch_1
ch_2
3
4
1
ch_1
ch_2
ch_2
ch_2
6
6
1
8 ch_2
10
12
RM0432 Rev 6
USB on-the-go full-speed (OTG_FS)
USB
Non-Periodic Request
Queue
4
Assume that this queue
can hold 4 entries.
Device
ai15675b
2203/2301
2245