AN2131-DK001 Cypress Semiconductor Corp, AN2131-DK001 Datasheet - Page 215
AN2131-DK001
Manufacturer Part Number
AN2131-DK001
Description
KIT EZ-USB DEVELOPMENT BOARD
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.AN2131SC.pdf
(334 pages)
Specifications of AN2131-DK001
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
428-1333
- Current page: 215 of 334
- Download datasheet (2Mb)
Bit 2:
The EZ-USB core sets this bit to “1” when it receives a SETUP token. Write a “1” to this
bit to clear the interrupt request. See Chapter 7, "EZ-USB Endpoint Zero" for more infor-
mation on the handling of SETUP tokens.
Because this bit can change state while the 8051 is in reset, it may be active when the 8051
comes out of reset, although it is reset to “0” by a power-on reset.
Bit 1:
The EZ-USB core sets this bit to “1” when it receives a SOF packet. Write a “1” to this bit
to clear the interrupt condition.
Because this bit can change state while the 8051 is in reset, it may be active when the 8051
comes out of reset, although it is reset to “0” by a power-on reset.
Bit 0:
The EZ-USB core sets this bit to “1” when it has transferred the eight data bytes from an
endpoint zero SETUP packet into internal registers (at SETUPDAT). Write a “1” to this
bit to clear the interrupt condition.
Because this bit can change state while the 8051 is in reset, it may be active when the 8051
comes out of reset, although it is reset to “0” by a power-on reset.
Page 12-22
SUTOKIR
SOFIR
SUDAVIR
SETUP Token Interrupt Request
Start of frame Interrupt Request
SETUP data available Interrupt Request
Chapter 12. EZ-USB Registers
EZ-USB TRM v1.9
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