r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 913

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

23.3.34 Relay FIFO Overflow Alert Set Register (Port 1) (TSU_BSYSL1)
The TSU has an alert function, which informs the E-MAC-0 and E-MAC-1 that writing to the
relay FIFO will be disabled when the data volume written in the relay FIFO during relay
operations exceeds a certain threshold. TSU_BSYSL1 sets the threshold of the relay FIFO when
the TSU alerts the E-MAC-1 that writing in the relay FIFO will be disabled during relay
operations.
Bit
31 to 6
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name

31
15


R
R
0
0
30
14


R
R
0
0
29
13


R
R
0
0
Initial
Value
All 0
28
12


R
R
0
0
27
11


R
R
0
0
R/W
R
26
10


R
R
0
0
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
25

R

R
0
9
0
24

R

R
0
8
0
Section 23 Gigabit Ethernet Controller (GETHER)
23

R

R
0
7
0
Rev. 1.00 Oct. 01, 2007 Page 847 of 1956
22


R
R
0
6
0
R/W
21

R
0
5
1
R/W
20

R
0
4
1
BSYSL1[5:0]
R/W
19

R
0
3
1
REJ09B0256-0100
R/W
18

R
0
2
1
17

R
0
1
1
R/W
16

R
0
0
1