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Field
Name
R/W
Description
0
PD
R/S
Power Down
When this bit is set to 1, all received frames will be discarded. When
receiving the magic packet or wake-up frame, this bit will be
automatically cleared to zero and the power-down mode will be
disabled. After this bit is cleared to zero, the received frame will be
forwarded to the application program. This bit can be set to 1 only
when the magic packet is enabled or the wake-up frame bit is set to
1.
1
MPEN
R/W
Magic Packet Enable
When this bit is set to 1, this bit will enable the power management
event generated due to receiving of a magic packet.
2
WKUPFEN
R/W
Wakeup Frame Enable
When this bit is set to 1, this bit will enable the power management
event generated due to receiving of a wake-up frame.
4:3
Reserved
5
MPRX
RC_R
Magic Packet Received
When this bit is set to 1, it indicates that the power management
event is generated due to receiving of a magic packet. This bit can
be cleared to zero by reading the register.
6
WKUPFRX
RC_R
Wakeup Frame Received
When this bit is set to 1, it indicates that the power management
event is generated due to receiving of a wake-up frame. This bit can
be cleared to zero by reading the register.
8:7
Reserved
9
GUN
R/W
Global Unicast
When this bit is set to 1, it will enable any filtered unicast packet
confirmed by MAC address to a wake-up frame.
30:10
Reserved
31
WKUPFRST
R/S
Wakeup Frame Filter Register Pointer Reset
When this bit is set to 1, it will reset the remote wake-up frame filter
register pointer to 000b. It will be automatically cleared to zero after 1
clock cycle.
Debug register (MAC_DBG)
Offset address: 0x34
Reset value: 0x0000 0000
This register gives the status of all main modules of transmitting and receiving
data path and FIFO. When it is set to all zero, it indicates that the MAC core is
idle (FIFO is empty) and there is no activity in the data path.
Field
Name
R/W
Description
0
RPESTS
R
MAC MII Receive Protocol Engine Status
When set to high, it indicates that the MAC MII receiving protocol
engine is actively receiving data instead of in IDLE state.