En_Rxpdr (Receive Pool Descriptor Pointer); En_Ccr (Configuration Register); En_Isr (Interrupt Serves Register) - NEC uPD98502 User Manual

Network controller
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5.2.32 En_RXPDR (Receive Pool Descriptor Pointer)

Bits
Field
31
Reserved
30:28
AL[2:0]
27:16
Reserved
15:0
RNOD
[15:0]

5.2.33 En_CCR (Configuration Register)

Bits
Field
31:1
Reserved
0
SRT

5.2.34 En_ISR (Interrupt Serves Register)

Bits
Field
31:16
Reserved
15
XMTDN
14
TBDR
13
TFLE
12
UR
11
TABR
9:8
Reserved
10
TCFRI
7
RCVDN
6
RBDRS
5
RBDRU
4
OF
3
LFAL
2:1
Reserved
0
CARRY
298
CHAPTER 5 ETHERNET CONTROLLER
R/W
Default
R/W
0
Reserved for future use. Write a 0.
R/W
0
Alert Level
R/W
0
Reserved for future use. Write 0s.
R/W
0
Remaining Number of Descriptor
R/W
Default
R/W
0
Reserved for future use. Write 0s.
R/W
0
Software Reset
R/W
Default
RC
0
Reserved for future use.
RC
0
Transmit Done
RC
0
Transmit Buffer Descriptor Request at Null
RC
0
Transmit Frame Length Exceed
RC
0
Underrun
RC
0
Transmit Aborted
RC
0
Reserved for future use.
RC
0
Control Frame Transmit
RC
0
Receive Done
RC
0
Receive Buffer Descriptor Request at alert level
RC
0
Receive Buffer Descriptor Request at zero
RC
0
Overflow
RC
0
Link Failed
RC
0
Reserved for future use.
RC
0
Carry Flag:
CARRY indicates an overflow of the statistics counters
Preliminary User's Manual S15543EJ1V0UM
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Description
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