NEC UPD98413 User Manual page 185

(15) Transmit POS Mode register (MDPOST)
The MDPOST register sets the modes related to transmit POS operation.
Register
Name
Port0:
MDPOST 0054H
31 30 29 28
15 14 13 12
Bit Field
D31- D6 Reserved Set to 0.
HALTM
D5 Sets the HALT mode.
PSCM
D4 Controls scramble of a packet.
1: Not scramble
D3 FCSLM Selects the FCS calculation order whether it is calculated from the LSB or MSB of
the transmit packet.
D2 FCSSZ Selects the transmit FCS length.
D1 FCSM Controls the insertion of FCS field in the transmit packet.
1: Disabled. FCS field are not inserted in the transmit packet.
0: Inserts FCS field.
D0 ADRM Controls the insertion of Address and Control fields in the transmit packet.
1: Disabled. Address and Control fields are not inserted in the transmit packet.
0: Inserts Address and Control fields.
CHAPTER 5 REGISTERS
Address
Port1: Port2: Port3:
0454H 0854H 0C54H
27 26 25 24
Reserved
11 10 9 8
Reserved
1: HALT mode 0: Normal operation
0: Scramble
1: MSB first 0: LSB first
1: 16 bits 0: 32 bits
PRELIMINARY
Access Default
R/W 00000000 H
23 22 21 20
7 6 5 4
HALTM PSCM FCSLM
Function
19 18 17 16
3 2 1 0
FCSSZ FCSM ADRM
Default
0
0
0
0
0
0
0
NEC confidential and Proprietary
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