CHAPTER 5 REGISTERS
PRELIMINARY
NEC confidential and Proprietary
203
(30) Receive POS Mode register (MDPOSR)
The MDPOSR register sets the modes related to receive POS operation.
Address
Register
Name
Port0: Port1: Port2: Port3:
Access Default
MDPOSR
0090 H
0490 H
0890 H
0C90 H
R/W
00000000 H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
15
14
13
12
11
10 9 8 7 6 5 4 3 2 1 0
Reserved
HALTM
PSCM LPM SPM
FCSPAS
FCSLM
FCSSZ
FCSM
ADRPAS
ADRM
Bit Field
Function
Default
D31-
D10
Reserved
Set to 0.
0
D9
HALTM
Sets the HALT mode.
1: HALT mode
0: Normal operation
0
D8
PSCM
Controls descramble of a packet.
1: Not descramble
0: Descramble
0
D7
LPM
Controls the check function of receive long size packet.
1: Disabled.
0: Checks long size packet.
0
D6
SPM
Controls the check function of receive short size packet.
1: Disabled.
0: Checks short size packet.
0
D5
FCSPAS
Selects if the receive FCS is passed through the POS interface or stripped.
1: FCS is passed.
0: FCS is stripped.
0
D4
FCSLM
Selects the FCS calculation order whether it is calculated from the LSB or MSB of
the receive packet.
1: MSB first
0: LSB first
0
D3
FCSSZ
Selects the receive FCS length.
1: 16 bits
0: 32 bits
0
D2
FCSM
Controls the check function of FCS field in the receive packet.
1: Disabled. FCS field are not checked in the receive packet.
0: Checks FCS field. If FCS error occurs, the error is indicated by RERR signal.
0
D1
ADRPAS
Selects if the receive Address and Control fields is passed through the POS
interface or stripped when the Address and Control check is enabled and no error.
1: Address and Control fields is passed.
0: Address and Control fields is stripped.
0
D0
ADRM
Controls the check function of Address and Control fields in the receive packet.
1: Disabled. Address and Control fields are not checked in the receive packet.
0: Checks Address and Control fields. If Address and Control errors occur, the
packet is dropped and the error is indicated by interrupt.
0
Summary of Contents for NEASCOT-P65
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Page 135: ...CHAPTER 4 INTERFACES PRELIMINARY NEC confidential and Proprietary 135 ...
Page 166: ...CHAPTER 5 REGISTERS PRELIMINARY NEC confidential and Proprietary 166 5 2 Register summary ...
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Page 317: ...CHAPTER 6 JTAG BOUNDARY SCAN PRELIMINARY NEC confidential and Proprietary 318 MEMO ...