HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 330

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 Ethernet Controller Direct Memory Access Controller (E-DMAC)
(1)
This problem does not occur with all of the bits in EESR. The description applies to some bits but
not others. Table 12.1 shows whether the problem can occur with the individual bits and whether
the state of the individual interrupt source is reflected in the descriptor.
Table 12.1 EESR Bits for which This Problem can Occur and Reflection of Interrupt
Rev. 6.00 Jun. 12, 2007 Page 298 of 610
REJ09B0131-0600
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Countermeasure
Bit Name Status

TWB



TABT
RABT
RFCOF
ADE
ECI
TC
TDE
TFUF
FR
RDE
RFOF
Sources in the Descriptor
Reserved
Write-back complete
Reserved
Reserved
Reserved
Transmit abort detected
Receive abort detected
Receive frame counter overflow
Address error
EtherC status register interrupt
source
Frame transmission complete
Transmit descriptor empty
Transmit FIFO underflow
Frame received
Receive descriptor empty
Receive FIFO overflow
Possibility
of Problem




Yes
No
No
No
Yes
No
Yes
No
No
Yes
Yes
Yes
Reflected in
Reflection in
Descriptor





Reflected in
TD0 bit8
(TFS8)
Reflected in
RD0 bit8
(RFS8)



Reflected in
TD0 bit31
(TACT)


Reflected in
RD0 bit31
(RACT)

RD0 bit9
(RFS9)
Interrupt
Source

Transmit



Transmit
Reception
Reception
Others
Others
Transmit
Transmit
Transmit
Reception
Reception
Reception