SPC7283 Epson Electronics America, Inc., SPC7283 Datasheet - Page 20

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

(6) RxIsocronousePacket (tcode : 0xA)
S1R72803F00A
16
Receive Packet Common Format
0
1
2
3
4
5
6
7
0
b.31
b.31
(Note 1) Refer to the Transmit Packet Common spd (speed code).
(Note 2) Refer to the Transmit Packet Common Ack (AckCode).
speed
AS
BT
SI
BC
HC
ACK
PSTS
Name
Bit count
DataLength
–
–
3
1
1
1
1
1
4
4
24 23
24 23
AreaStatus bit (1: StreamArea, 0: ORBArea)
Bit which toggles during the BusReset period.
Whether the received packet is a Self ID packet
Whether the received packet is a Broadcast packet.
Presence/absence of the Header CRC error (1: Packet disabled)
Transmitted AckCode (Note 2)
Speed Code (Note 1)
AckCode which was scheduled to be transmitted (Note 2)
speed
speed
*DataPointer
EPSON
reserved
16 15
16 15
Description
tag
–
–
channel
AS
AS
BT 0
BT SI
8
8
7
7
tcode (0xA)
–
–
BC HC
1 0
ACK
ACK
sy
b.0
b.0