SH7763 Datasheet, PDF (925/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 23 Gigabit Ethernet Controller (GETHER)
23.3.40 Qtag Addition/Deletion Set Register (Port 0 to 1) (TSU_QTAG0)
TSU_QTAG0 sets the functions adding Qtag to the normal Ethernet frames (no Qtag) to convert
them into IEEE802.1Q frames (with Qtag) and deleting Qtag from IEEE802.1Q frames (with
Qtag) to convert them into normal Ethernet frames (no Qtag) during port 0 to 1 relay operations.
This register must not be written to once after relay operations have been enabled (after the
FWEN0 bit in TSU_FWEN0 or the FWEN1 bit in TSU_FWEN1 is set to 1).
Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
















Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R R R R R R R R R R R R R R R R
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0













QTAG0[2:0]
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R R R R R R R R R R R R R R/W R/W R/W
Bit
31 to 3
2 to 0
Bit Name
Initial
Value R/W Description

All 0 R
Reserved
These bits are always read as 0. The write value should
always be 0.
QTAG0[2:0] All 0
R/W These bits set Qtag adding and deleting functions
during port 0 to 1 relay operations.
H'0: Disables Qtag adding and deleting functions
H'1: Disables Qtag adding and deleting functions
H'2: Deletes Qtag from frames with Qtag
H'3: Adds Qtag to frames with no Qtag
(Does not add Qtag to MAC control frames)
H'4: Disables Qtag adding and deleting functions
H'5: Setting prohibited
H'6: Setting prohibited
H'7: Adds Qtag to frames with no Qtag
(Adds Qtag to MAC control frames)
This register must not be written to once after relay
operations have been enabled (after the FWEN0 bit in
TSU_FWEN0 or the FWEN1 bit in TSU_FWEN1 is set
to 1).
Rev. 1.00 Oct. 01, 2007 Page 859 of 1956
REJ09B0256-0100