Renesas R-IN32M3 Series User Manual page 177

R-IN32M3-EC User's Manual
7.4.10 Register 17 - Mode Control/Status Register
Register 17 specifies the operating mode of Ethernet PHY.
15 14 13
MR17
RW RW, RW
NASR
Bit Position Bit Name
15 (RESERVED)
14 FASTRIP
13 EDPWRDOWN
12 (RESERVED)
11 LOWSQEN
10 (RESERVED)
9 FARLOOPBACK
8 FASTEST
7 AUTOMDIX_EN
6 MDI_MODE
5 (RESERVED)
R18UZ0003EJ0501
Jan. 12, 2021
12 11 10 9 8
RW RW RW RW RW
Reserved (Write 0 and ignore reading)
Sets the 10BASE-T fast mode. This bit can only be used for simulation.
0: Normal operation
1: PHYT_10 test mode
Enables/Disables the energy detection power-down mode.
0: Disabled
1: Enabled
Reserved (Write 0 and ignore reading)
Low squelch setting
0: Normal operation
1: Low down the threshold (Increase the sensitivity of signal)
Reserved (Write 0 and ignore reading)
Enables/Disables the remote loopback mode. When enabled, all the received
packets are sent back simultaneously. This bit supports only the
100BASE-TX/FX mode.
0: Disabled
1: Enabled
Enables/Disables the test mode of auto negotiation. This bit can only be used for
simulation. It also shortens the time for software reset.
0: Disabled
1: Enabled
Enables/Disables the auto-MDIX function
0: Disabled (Set manually by bit 6 in register 17)
1: Enabled
When bit 7 in register 17 is 0, this bit sets the MDI/MDI-X mode manually. When
bit 7 in register 17 is 1, this bit indicates the status of mode. Writing to the
register is disabled at this time.
0: MDI mode
1: MDI-X mode
Reserved (Write 0 and ignore reading)
7 6 5 4 3
RW RW R RW RW
Description
7. Ethernet PHY Function
2 1 0
Register Address
11H
Initial Value
0080H
RW R RW
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