Universal Serial Bus OTG Controller
UG0331 User Guide Revision 15.0 311
10.3.5.3 TX_IRQ_REG Bit Definitions
10.3.5.4 RX_IRQ_REG Bit Definitions
2 Resume 0 Set by the Cortex-M3 processor (or fabric master) to generate resume
signaling when the device is in Suspend mode. In Peripheral mode, the
Cortex-M3 processor (or fabric master) should clear this bit after 10 ms (a
maximum of 15 ms), to end resume signaling. In Host mode, the Cortex-M3
processor (or fabric master) should clear this bit after 20 ms.
1 Suspend Mode 0 In Host mode, this bit is set by the Cortex-M3 processor (or fabric master) to
enter Suspend mode. In Peripheral mode, this bit is set on entry into
Suspend mode. It is cleared when the Cortex-M3 processor (or fabric
master) reads the interrupt register, or sets the resume bit above.
0 Enable SuspendM 0 Set by the Cortex-M3 processor (or fabric master) to enable the
SUSPENDM output.
Table 201 • TX_IRQ_REG (0x40043002)
Bit
Number Name
Reset
Value Function
[15:5] Reserved N/A N/A
4 EP4 Tx 0 Transmit endpoint 4 interrupt
3 EP3 Tx 0 Transmit endpoint 3 interrupt
2 EP2 Tx 0 Transmit endpoint 2 interrupt
1 EP1 Tx 0 Transmit endpoint 1 interrupt
0 EP0 0 Endpoint 0 interrupt
Table 202 • RX_IRQ_REG (0x40043004)
Bit
Number Name
Reset
Value Function
[15:5] Reserved N/A N/A
4 EP4 Rx 0 Receive endpoint 4 interrupt
3 EP3 Rx 0 Receive endpoint 3 interrupt
2 EP2 Rx 0 Receive endpoint 2 interrupt
1 EP1 Rx 0 Receive endpoint 1 interrupt
0 Reserved 0 Always returns zero
Table 200 • POWER_REG (0x40043001) (continued)
Bit
Number Name
Reset
Value Function