SPC7283 Epson Electronics America, Inc., SPC7283 Datasheet - Page 16

• Manufacturer Part Number: SPC7283
• Description: IEEE1394 Controller
• Manufacturer: Epson Electronics America, Inc.

S1R72803F00A
7.2 IEEE1394 PACKET FORMAT
7.2.1 Transmit Packet Format
(1) TxAsyncronousePacket <3> QuadReadReq, WriteResp
1 QuadReadReq
2 WriteResp
(2) TxAsyncronousePacket <4> QuadWriteReq, QuadReadResp, BlockReadReq
12
1 QuadWriteReq
2 QuadReadResp
3 BlockReadReq
0
1
2
3
4
5
6
7
1
2
1
2
0
1
2
3
4
5
6
7
1
2
3
1
2
3
1
2
3
b.31
b.31
–
–
DestinationID
DestinationID
DestinationID
DestinationID
DestinationID
DestinationID
DestinationID
DataLength
24 23
24 23
(tcode : 0x4)
(tcode : 0x2)
(tcode : 0x0)
(tcode : 0x6)
(tcode : 0x5)
Sbid
Sbid
–
–
PacketTypeSpecQuadletData
PacketTypeSpecInfo
PacketTypeSpecInfo
DestinationOffset
DestinationOffset
DestinationOffset
speed
–
speed
EPSON
QuadletData
QuadletData
–
reserved
reserved
reserved
reserved
16 15
16 15
(MSB)
(MSB)
(MSB)
(MSB)
(MSB)
rcode
rcode
tl
tl
ExtendedTcode
rt
rt
8
8
7
7
tcode
tcode
ACK
ACK
pri
pri
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
b.0
b.0