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STM32F101xx, STM32F102xx, STM32F103xx, STM32F105xx and ...

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USB on-the-go full-speed (OTG_FS)<br />

RM0008<br />

Figure 268. Interrupt hierarchy<br />

Interrupt<br />

OR<br />

AND<br />

Global interrupt<br />

mask (Bit 0)<br />

AHB configuration<br />

register<br />

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17:10 9 8 7:3 2 1 0<br />

Core interrupt<br />

register (1)<br />

Core interrupt mask<br />

register<br />

Device all endpoints<br />

interrupt register<br />

31:16<br />

OUT endpoints<br />

15:0<br />

IN endpoints<br />

OTG<br />

interrupt<br />

register<br />

Device all endpoints<br />

interrupt mask register<br />

Interrupt<br />

sources<br />

Device IN/OUT endpoint<br />

interrupt registers 0 to 4<br />

Device IN/OUT<br />

endpoints common<br />

interrupt mask register<br />

Host port control <strong>and</strong> status<br />

register<br />

Host all channels interrupt<br />

register<br />

Host all channels<br />

interrupt mask register<br />

Host channels interrupt<br />

registers 0 to 8<br />

Host channels interrupt<br />

mask registers 0 to 8<br />

ai15616<br />

1. The core interrupt register bits are shown in OTG_FS core interrupt register (OTG_FS_GINTSTS) on<br />

page 732.<br />

716/995 Doc ID 13902 Rev 9

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