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4.35TransmitCPPIDMAStateWord5(TCPPIDMASTATEW5)
4.36TransmitCPPICompletionPointer(TCPPICOMPPTR)
Registers
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Table50.TransmitCPPIDMAStateWord4(TCPPIDMASTATEW4)FieldDescriptions(continued)
BitFieldValueDescription
15-0CURR_BUFFER_LENGTH0-FFFFhCurrentBufferLength
Indicateshowmanyvalidbytesremaininthecurrentbufferthatisbeing
transmittedfrom
TheTransmitCPPIDMAStateWord5(TCPPIDMASTATEW5)isshowninFigure50anddescribedin
Table51.
Figure50.TransmitCPPIDMAStateWord5(TCPPIDMASTATEW5)
3116
REM_LENGTH
R/W-0
150
LENGTH
R/W-0
LEGEND:R/W=Read/Write;-n=valueafterreset
Table51.TransmitCPPIDMAStateWord5(TCPPIDMASTATEW5)FieldDescriptions
BitFieldValueDescription
31-16REM_LENGTH0-FFFFhRemainingPacketLength
Indicateshowmanybytesremaintobetransmittedinthepacketbeforetruncationoccurs
15-0LENGTH0-FFFFhPacketLength
Indicateshowmanybytesarecontainedinthepacket.Thisvalueiscopiedfromthe
packet-lengthfieldinWord3oftheSOPDescriptor.ThisvalueiswrittenintotheAAL5trailer
forthepacket.
TheTransmitCPPICompletionPointer(TCPPICOMPPTR)isshowninFigure51anddescribedin
Table52.
Figure51.TransmitCPPICompletionPointer(TCPPICOMPPTR)
3116
DESC_ADDR
R/W-0
15210
DESC_ADDRReservedWRBK_MODE
R/W-0R-0R/W-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
UniversalSerialBus(USB)Controller 104SPRUGH3–November2008
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