TMP92CZ26A

92CZ26A-374

7 6 5 4 3 2 1 0
bit Symbol INT_SETUP INT_EP0 INT_STAS INT_STASN INT_EP1N INT_EP2N INT_EP3N
Read/Write R/W R/W R/W R/W R/W R/W R/W
After reset 0 0 0 0 0 0 0
Function When read 0: Not generate interrupt
1: Generate interrupt
When write 0: Clear flag
1: −
Note: Above interrupt can release Halt state from IDLE2 mode. (IDLE1 and STOP mode can not be released.)
• INT_SETUP (Bit7)
This is a flag for INT_SETUP (setup - interrupt).
This is set to “1” when the UDC receive request that S/W (software) control
is needed from USB host.
By S/W (INT_SETUP routine), at first, read device request of 8-bytes from
UDC and execute operation according to each req uest.
• INT_EP0 (Bit6)
This is a flag for INT_EP0 (received data of the data phase for Control
transfer type - interrupt).
This is set to “1” when the UDC receive data of the data phase for Control
transfer type. At the Control writ e transfer, data reading from FIFO is needed
if this interrupt occur. At the Control read trans fer, transmission data writing
to FIFO is needed if this interrupts occurred.
By host may don’ t assert “ACK” of last packet in the data stage. In that case,
this interrupt cannot be generated. So, ignore this interrupt of after last
packet data was written in the data stage because the transmission data
number is specified by the host, or it depends on the capacity of the device.
• INT_STAS ( Bit5)
This is a flag for INT_STAS (status stage end - interrupt ).
This is set to “1” when the status stage end.
If this interrupt is generated, it means that request ended norm ally.
If this interrupt is not generated and INT_SETUP is generated,
EP0_STATUS <STAGE_ERR> is set to “1” and it means that request didn’t
end normally.
USBINTFR4
(07F3H)
Prohibit
to read
modify
write