r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 898

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 23 Gigabit Ethernet Controller (GETHER)
23.3.20 Carrier Extension Error Counter Register (CEECR)
CEECR is a 16-bit counter that indicates the number of frames received with an illegal carrier
extension. When the value in this register reaches H'0000FFFF, count-up is halted. This register is
cleared to 0 when it is read with the TRCCM bit in ECMR set to 1. When the TRCCM bit in
ECMR is 0, this register is cleared to 0 by writing H'11111111.
Rev. 1.00 Oct. 01, 2007 Page 832 of 1956
REJ09B0256-0100
Bit
31 to 16
15 to 0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name

CEEC[15:0] All 0
R/W
31
15

R
0
0
R/W
30
14

R
0
0
R/W
29
13

R
0
0
Initial
Value
All 0
R/W
28
12

R
0
0
R/W
27
11
R/W
R
R/W

R
0
0
R/W
26
10

R
0
0
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Carrier Extension Error Count
These bits indicate the number of frames received with
an illegal carrier extension.
R/W
25

R
0
9
0
R/W
CEEC[15:0]
24

R
0
8
0
R/W
23

R
0
7
0
R/W
22

R
0
6
0
R/W
21

R
0
5
0
R/W
20

R
0
4
0
R/W
19

R
0
3
0
R/W
18

R
0
2
0
17

R
0
1
0
R/W
16

R
0
0
0