UM10503
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User manual
Rev. 1.3 — 6 July 2012
695 of 1269
NXP Semiconductors
UM10503
Chapter 26: LPC43xx Ethernet
26.6.12 MAC Interrupt status register
The Interrupt Status register contents identify the events in the MAC-CORE that can
generate interrupt.
6
WFR
Wake-up Frame Received
This register field can be read by the application (Read), can be set to 1 by the
Ethernet core on a certain internal event (Self Set), and is automatically cleared to 0
on a register read. A register write of 0 has no effect on this field.
When set, this bit indicates the power management event was generated due to
reception of a wake-up frame. This bit is cleared by a Read into this register.
0
RO
8:7
-
Reserved
0
RO
9
GU
Global Unicast
When set, enables any unicast packet filtered by the MAC (DAF) address recognition
to be a wake-up frame.
0
R/W
30:10
-
Reserved
0x00
0000
RO
31
WFFRPR Wake-up Frame Filter Register Pointer Reset
This register field can be read by the application (Read), can be set to 1 by the
application with a register write of 1 (Write Set), and is cleared to 0 by the core (Self
Clear). The application cannot clear this type of field, and a register write of 0 to this
bit has no effect on this field.
When set, resets the Remote Wake-up Frame Filter register pointer to 000. It is
automatically cleared after 1 clock cycle.
0
R/W
Table 543. MAC PMT control and status register (MAC_PMT_CTRL_STAT, address 0x4001 002C) bit description
Bit
Symbol
Description
Reset
value
Access
Table 544. MAC Interrupt status register (MAC_INTR, address 0x4001 0038) bit description
Bit
Symbol
Description
Reset
value
Access
2:0
-
Reserved.
0
RO
3
PMT
PMT Interrupt Status
This bit is set whenever a Magic packet or Wake-on-LAN
frame is received in Power- Down mode (See bits 5 and 6 in
). This bit is cleared when both bits[6:5] are
cleared because of a read operation to the PMT Control and
Status register.
0
RO
8:4
-
Reserved.
0
RO