Samsung S5PC110 Manual page 921

S5PC110_UM
5.8.3.9 Host Mode Receive Status Debug Read/Status Read and Pop Registers (GRXSTSR/GRXSTSP, R,
Address = 0xEC00_001C, 0xEC00_0020)
GRXSTSR/
GRXSTSP
Reserved [31:21] -
PktSts [20:17] Packet Status
DPID [16:15] Data PID
BCnt [14:4]
ChNum [3:0]
Bit
Indicates the status of the received packet.
4'b0010: IN data packet received
•
4'b0011: IN transfer completed (triggers an interrupt)
•
4'b0101: Data toggle error (triggers an interrupt)
•
4'b0111: Channel halted (triggers an interrupt)
•
others: Reserved
•
Indicates the Data PID of the received packet.
2'b00: DATA0
•
2'b10: DATA1
•
2'b01: DATA2
•
2'b11: MDATA
•
Byte Count
Indicates the byte count of the received IN data packet.
Channel number
Indicates the channel number to which the current received
packet belongs.
Description
5 USB2.0 HS OTG
R/W Initial State
- -
R -
R -
R -
R -
5-45