CHAPTER 5 REGISTERS
PRELIMINARY
NEC confidential and Proprietary
301
(150) Receive C2 drop register (C2R)
The C2R register is used for storing the receive C2 byte.
Address
Register
Name
Port0: Port1: Port2: Port3:
Access Default
C2R
038C H
078C H
0B8C H
0F8C H
R
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
C2[7:0]
Bit Field
Function
Default
D31-D8
Reserved
0
D7-D0
C2[7:0]
Stores the receive C2 byte. This field is updated when three or five contiguous
frames containing the same C2 byte are received after the contents of the register
are changed.
0
Note: This register is updated if the same value is received in three or five time consecutive.
(151) Receive G1, F2 and H4 drop register (G1F2H4R)
The G1F2H4R register is used for storing the receive G1, F2 and H4 byte.
Address
Register
Name
Port0: Port1: Port2: Port3:
Access Default
G1F2H4R
0390 H
0790 H
0B90 H
0F90 H
R
00000000 H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
H4[7:0]
15
14
13
12
11
10 9 8 7 6 5 4 3 2 1 0
F2[7:0]
G1[7:0]
Bit Field
Function
Default
D31-
D24
Reserved
0
D23-
D16
H4[7:0]
Stores the receive H4 byte. This field is updated each time a frame is received.
0
D15-D8
F2[7:0]
Stores the receive F2 byte. This field is updated each time a frame is received.
0
D7-D0
G1[7:0]
Stores the receive G1 byte. This field is updated each time a frame is received.
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 ...