r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 901

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

23.3.23 Manual PAUSE Frame Register (MPR)
MPR is used to set the TIME parameter value of a manual PAUSE frame. When a manual PAUSE
frame is transmitted, the value set in this register is used as the TIME parameter of the PAUSE
frame.
Bit
31 to 16
15 to 0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name

MP[15:0]
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
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.
Manual PAUSE
These bits set the TIME parameter value of a manual
PAUSE frame. One bit is equivalent to 512 bit-time.
H'0000: 
H'0001: 512 × 1 bit-time
H'0002: 512 × 2 bit-time
H'FFFF: 512 × 65,535 bit-time
Note: The bit-time becomes as follows according to
R/W
25

R
0
9
0
:
R/W
24
the transfer speed.
1000 Mbps: 1 bit-time = 1 ns
100 Mbps: 1 bit-time = 10 ns
10 Mbps: 1 bit-time = 100 ns

R
0
8
0
MP[15:0]
:
Section 23 Gigabit Ethernet Controller (GETHER)
R/W
23

R
0
7
0
R/W
Rev. 1.00 Oct. 01, 2007 Page 835 of 1956
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
REJ09B0256-0100
R/W
18

R
0
2
0
17

R
0
1
0
R/W
16

R
0
0
0