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S3C2500B
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30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
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[3:0] MAXP value (MAXP)
[3:0]value x 8 = max packet size
[6:4] Reserved
[7] MAXP value SETting enable (MAXPSET)
0 = MAXP value isn't changed
1 = MAXP value is changed
[8] (OUT) ISO mode (OISO)
0 = Bulk / interrupt mode
1 = ISO mode
[9] (OUT) AuTo CLeaR (OATCLR)
0 = No operation
1 = Auto clearing ORDY when FIFO data unloaded
[10] in/out MODE setting (MODE)
0 = Indexed endpoint set to OUT
1 = Indexed endpoint set to IN
[11] (IN) ISO mode (IISO)
0 = Bulk / interrupt mode
1 = ISO mode
[12] (IN) AuTo SET (IATSET)
0 = No operation
1 = Auto setting IINRDY when MAXP-sized packet loaded
[14:13] Reserved
[15] CSR2 SETting enable (CSR2SET)
0 = USBEP3CSR[12:8] isn't changed
1 = USBEP3CSR[12:8] is changed
[16] (OUT) Out packet ReaDY (OORDY)
0 = Not received data packet
1 = Received packet from host
[17] (OUT) Fifo FULL (OFFULL)
0 = Normal operation
1 = FIFO full state
[18] (OUT) OVER run (OOVER)
0 = Normal operation
1 = Data received at FIFO full state (ISO)
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Figure 10-15. USBEP3CSR Register
15
14 13
12 11 10 9
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[19] (OUT) Data ERRor (ODERR)
0 = Normal operation
1 = Data error (ISO)
[20] (OUT) Fifo FLUSH (OFFLUSH)
0 = No operation
1 = FIFO flush
[21] (OUT) SenD STALL (OSDSTALL)
0 = No operation
1 = Stall handshake transmit state
[22] (OUT) SenT STALL (OSTSTALL)
0 = No operation
1 = Stall handshake transmitted
[23] (OUT) CLear data TOGgle (OCLTOG)
0 = No operation
1 = Data toggle flag set to 0
[24] (IN) IN packet ReaDY (IINRDY)
0 = Not ready for IN operation
1 = Ready for IN operation
[25] (IN) fifo Not EMPty (INEMP)
0 = No data packet in FIFO
1 = There is at least one packet of data in FIFO
[26] (IN) UNDER run (IUNDER)
0 = No operation
1 = Received IN token but not ready (ISO)
[27] (IN) Fifo FLUSH (IFFLUSH)
0 = No operation
1 = FIFO flush
[28] (IN) SenD STALL (ISDSTALL)
0 = No operation
1 = Stall handshake transmit state
[29] (IN) SenT STALL (ISTSTALL)
0 = No operation
1 = Stall handshake transmitted
[30] (IN) CLear TOGgle (ICLTOG)
0 = No operation
1 = Data toggle flag set to 0
[31] Reserved
USB CONTROLLER
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10-39
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