MC908JB16DWE Datasheet, PDF (183/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

Universal Serial Bus Module (USB)
11.8.2 USB Interrupt Register 0
Address: $0039
Bit 7
6
5
4
3
2
1
Bit 0
Read:
0
EOPIE SUSPND TXD2IE RXD2IE TXD1IE
TXD0IE RXD0IE
Write:
Reset: 0
0
0
0
0
0
0
0
= Unimplemented
Figure 11-16. USB Interrupt Register 0 (UIR0)
EOPIE — End-of-Packet Detect Interrupt Enable
This read/write bit enables the USB to generate CPU interrupt
requests when the EOPF bit becomes set. Reset clears the EOPIE
bit.
1 = End-of-packet sequence detection can generate a CPU
interrupt request
0 = End-of-packet sequence detection cannot generate a CPU
interrupt request
SUSPND — USB Suspend Bit
To save power, this read/write bit should be set by the software if a
3ms constant idle state is detected on the USB bus. Setting this bit
puts the transceiver into a power-saving mode. The RESUMF flag
must be cleared before setting SUSPND. Software must clear this bit
after the resume flag (RESUMF) is set while this resume interrupt flag
is serviced.
TXD2IE — Endpoint 2 Transmit Interrupt Enable
This read/write bit enables the transmit endpoint 2 to generate CPU
interrupt requests when the TXD2F bit becomes set. Reset clears the
TXD2IE bit.
1 = Transmit endpoint 2 can generate a CPU interrupt request
0 = Transmit endpoint 2 cannot generate a CPU interrupt request
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor
Universal Serial Bus Module (USB)
Technical Data
183