Renesas R-IN32M3 Series User Manual page 169

R-IN32M3-EC User's Manual
7.4.2 Register 1 - Status Register
Register 1 shows the status of Ethernet PHY.
15 14 13
MR1
R R
Bit Position Bit Name
15 100BASE-T4
14 100BASE-TX_
FULL_DUPLEX
13 100BASE-TX_
HALF_DUPLEX
12 10M_FULL_DUPLEX
11 10M_HALF_DUPLEX
10 to 6 (RESERVED)
5 AUTO-NEGOTIATION_
COMPLETE
4 REMOTE_FAULT
AUTO-NEGOTIATION_
3
ABILIT
2 LINK_STATUS
1 JABBER_DETECT
0 EXTENDED_
CAPABILITY
R18UZ0003EJ0501
Jan. 12, 2021
12 11 10 9
(RESERVED)
R R R R R
Enables/Disables 100BASE-T4 communication
0: Disabled
1: Enabled
Enables/Disables 100BASE-TX full-duplex communication
0: Disabled
1: Enabled
Enables/Disables 100BASE-TX half-duplex communication
0: Disabled
1: Enabled
Enables/Disables 10 Mb/s full-duplex communication
0: Disabled
1: Enabled
Enables/Disables 10 Mb/s half-duplex communication
0: Disabled
1: Enabled
Reserved (Write 0 and ignore reading)
Notice of Auto-Negotiation Completion
0: Not completed
1: Completed
Indicates the detection result of failure in remote side.
0: Failure not detected
1: Failure detected
Enables/Disables auto-negotiation communication
0: Disabled
1: Enabled
Shows the status of link
0: Link down
1: Link up
Shows the detection result of jabber state
0: Jabber not detected
1: Jabber detected
Shows whether the extended register is used
0: Only basic register set is used
1: Extended register set is used
8 7 6 5 4
R R R R R/LH
Description
7. Ethernet PHY Function
3 2 1 0
Register Address
Initial Value
R R/LL R/LH R
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01H
7809H