s1r72803 Epson Electronics America, Inc., s1r72803 Datasheet - Page 73
![no-image](/images/no-image-200.jpg)
s1r72803
Manufacturer Part Number
s1r72803
Description
Link/transaction Controller
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.S1R72803.pdf
(116 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
s1r72803F00A2
Manufacturer:
EPSON/爱普生
Quantity:
20 000
Company:
Part Number:
s1r72803F00A200
Manufacturer:
Epson Electronics America Inc-Semiconductor Div
Quantity:
10 000
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Used Receive Header Pointer Register
Used Receive ORB Data Pointer Register
Address
Address
0x48
0x49
0x4A
0x4B
This Used Receive Header Pointer Register indicates the starting address of used header of a receive packet in
the RxHdrArea. Since the buffer pointer is in 8Quadlet unit, the lower order 5 bits are always “0”. Also, since
the buffer size is 2 Kbytes, the higher order 3 bits are always “0”.
This Used Receive ORB Data Pointer Register indicates the starting address of used ORB data of receive packet
in the RxORBArea. Since the buffer pointer is in Quadlet unit, the lower order 2 bits are always “0”. Also, since
the buffer size is 2 Kbytes, the higher order 3 bits are always “0”.
UsedRxHdrPtr_H
UsedRxHdrPtr_L
UsedRxORBPtr_H
UsedRxORBPtr_L
Register Name
Register Name
Bit Symbol R/W
Bit Symbol R/W
7:
6:
5:
4: URHP[12]
3: URHP[11]
2: URHP[10]
1: URHP[9] R/W
0: URHP[8]
7: URHP[7]
6: URHP[6]
5: URHP[5]
4:
3:
2:
1:
0:
7:
6:
5:
4: UOP[12]
3: UOP[11]
2: UOP[10]
1: UOP[9]
0: UOP[8]
7: UOP[7]
6: UOP[6]
5: UOP[5]
4: UOP[4]
3: UOP[3]
2: UOP[2]
1:
0:
R/W
Write is ignore
Read always zero
Received Packet Header Area Used Pointer
Write is ignore
Read is always zero
Write is ignore
Read is always zero
Received Packet ORB Data Area Used Pointer
Write is ignore
Read is always zero
EPSON
Description
Description
S1R72803F00A
H.Rst S.Rst B.Rst
0x00 0x00
0x00 0x00
H.Rst S.Rst B.Rst
0x00 0x00
0x00 0x00
–
–
–
–
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