PM5381-BI PMC-Sierra, Inc., PM5381-BI Datasheet - Page 424

• Manufacturer Part Number: PM5381-BI
• Description: ATM UNI, Single Channel ATM PHY Interface for 2488.32Mbps
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000489, Issue 4
Register 0786H: RXPHY Data Type Field
The RXPHY Data Type Field register is used in POS-PHY L3 mode of operation only and
identifies the type of traffic, ATM or packet, being sent over the POS-PHY L3 interface. ATM or
packet PHYs are selected using the POS_SEL bits in the RXSDQ FIFO Indirect Configuration
register.
ATM_FIELD[7:0]
POS_FIELD[7:0]
Bit
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
The ATM_FIELD register is provided to identify ATM cell transfers over the POS-PHY L3
interface. When the outgoing data is an ATM cell, the ATM_FIELD[7:0] is inserted in
RDAT[31:24] at the cycle in which the in-band address is inserted in RDAT[5:0] (i.e. when
RSX is logic 1).
The POS_FIELD register is provided to identify packet data transfers over the POS-PHY L3
interface. When the outgoing data is packet data, the POS_FIELD[7:0] is inserted in
RDAT[31:24] at the cycle in which the in-band address is inserted in RDAT[5:0] (i.e. when
RSX is logic 1).
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POS_FIELD[7]
POS_FIELD[6]
POS_FIELD[5]
POS_FIELD[4]
POS_FIELD[3]
POS_FIELD[2]
POS_FIELD[1]
POS_FIELD[0]
ATM_FIELD[7]
ATM_FIELD[6]
ATM_FIELD[5]
ATM_FIELD[4]
ATM_FIELD[3]
ATM_FIELD[2]
ATM_FIELD[1]
ATM_FIELD[0]
Function
S/UNI-2488 Telecom Standard Product Datasheet
Default
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
Released
424