HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 274

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

Section 11 Ethernet Controller (EtherC)
11.3.10 Delayed Collision Detect Counter Register (CDCR)
CDCR is a 32-bit counter that indicates the number of delayed collisions on all lines from a start
of transmission. When the value in this register reaches H'FFFFFFFF, count-up is halted. The
counter value is cleared to 0 by a write to this register with any value.
11.3.11 Lost Carrier Counter Register (LCCR)
LCCR is a 32-bit counter that indicates the number of times the carrier was lost during data
transmission. When the value in this register reaches H'FFFFFFFF, the count is halted. The
counter value is cleared to 0 by writing to this register with any value.
11.3.12 Carrier Not Detect Counter Register (CNDCR)
CNDCR is a 32-bit counter that indicates the number of times the carrier could not be detected
while the preamble was being sent. When the value in this register reaches H'FFFFFFFF, the count
is halted. The counter value is cleared to 0 by a write to this register with any value.
Rev. 6.00 Jun. 12, 2007 Page 242 of 610
REJ09B0131-0600
Bit
31 to 0 COSDC31 to
Bit
31 to 0 LCC31 to
Bit
31 to 0 CNDC31 to
Bit Name
COSDC0
Bit Name
CNDC0
Bit Name
LCC0
Initial
Value
All 0
Initial
Value
All 0
Initial
Value
All 0
R/W
R/W
R/W
R/W
R/W
R/W
Description
Delayed Collision Detect Count
These bits indicate the number of delayed collisions
on all lines from a start of transmission.
Description
Lost Carrier Count
These bits indicate the number of times the carrier
was lost during data transmission.
Description
Carrier Not Detect Count
These bits indicate the number of times the carrier
was not detected.