Datasheet

Section 16 USB Function Module (USB)
Page 986 of 1408 R01UH0309EJ0500 Rev. 5.00
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
16.4 Interrupt Sources
This module has five interrupt signals. Table 16.6 shows the interrupt sources and their
corresponding interrupt request signals. The USBINTN interrupt signals are activated at low level.
The USBINTN interrupt requests can only be detected at low level (specified as level sensitive).
Table 16.6 Interrupt Sources
Register Bit
Transfer
Mode
Interrupt
Source Description
Interrupt
Request Signal
DMAC
Activation
0 VBUSF USB bus connection/
disconnection
detection
USBINTN2 or USBINTN3 x
1 VBUSMN VBUS connection
status
⎯ x
2 SETI Set_Interface
command detection
USBINTN2 or USBINTN3 x
3 SETC Set_Configuration
command detection
USBINTN2 or USBINTN3 x
4 SURSF Suspend/resume
detection
USBINTN2, USBINTN3
or RESUME
x
5 SURSS Suspend/resume
status
⎯ x
6 CFDN Endpoint information
load end
USBINTN2 or USBINTN3 x
IFR0
7
Status
BRST Bus reset USBINTN2 or USBINTN3 x
0 EP0i_TS* EP0i transmission
complete
USBINTN2 or USBINTN3 x
1 EP0i_TR* EP0i transfer request USBINTN2 or USBINTN3 x
2 EP0o_TS* EP0o receive
complete
USBINTN2 or USBINTN3 x
3
Control
transfer
(EP0)
SETUP_TS* Setup command
receive complete
USBINTN2 or USBINTN3 x
4 Status SOF SOF packet detection USBINTN2 or USBINTN3 x
5 ⎯ Reserved ⎯ ⎯ ⎯
6 ⎯ Reserved ⎯ ⎯ ⎯
IFR1
7 ⎯ Reserved ⎯ ⎯ ⎯