KSZ8841-16MVLI TR Micrel, KSZ8841-16MVLI TR Datasheet - Page 70

• Manufacturer Part Number: KSZ8841-16MVLI TR
• Description: Ethernet ICs Single Ethernet Port + Generic (8, 16-bit) bus interface(Lead Free)
• Manufacturer: Micrel

Specifications of KSZ8841-16MVLI TR

• Rohs: yes
• Product: Ethernet Controllers
• Package / Case: LQFP-128
• Mounting Style: SMD/SMT

Bank 18 Receive Status Register (0x04): RXSR
This register indicates the status of the current received frame and mirrors the Receive Status word of the Receive
Frame in the RXQ.
Bank 18 Receive Byte Count Register (0x06): RXBC
This register indicates the status of the current received frame and mirrors the Receive Byte Count word of the Receive
Frame in the RXQ.
October 2007
Micrel, Inc.
Bit
15
14-8
7
6
5
4
3
2
1
0
Bit
15-11
10-0
-
-
-
-
-
-
-
-
-
-
-
-
Default Value
Default Value
R/W
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
R/W
RO
RO
Description
RXFV Receive Frame Valid
When set, it indicates that the present frame in the receive packet memory is valid. The status
information currently in this location is also valid.
When clear, it indicates that there is either no pending receive frame or that the current frame
is still in the process of receiving.
Reserved.
RXBF Receive Broadcast Frame
When set, it indicates that this frame has a broadcast address.
RXMF Receive Multicast Frame
When set, it indicates that this frame has a multicast address (including the broadcast
address).
RXUF Receive Unicast Frame
When set, it indicates that this frame has a unicast address.
RXMR Receive MII Error
When set, it indicates that there is an MII symbol error on the received frame.
RXFT Receive Frame Type
When set, it indicates that the frame is an Ethernet-type frame (frame length is greater than
1500 bytes).
When clear, it indicate that the frame is an IEEE 802.3 frame.
This bit is not valid for runt frames.
RXTL Receive Frame Too Long
When set, it indicates that the frame length exceeds the maximum size of 1916 bytes. Frames
that are too long are passed to the host only if the pass bad frame bit is set (bit 9 in RXCR
register).
Note: Frame too long is only a frame length indication and does not cause any frame
truncation.
RXRF Receive Runt Frame
When set, it indicates that a frame was damaged by a collision or premature termination
before the collision window has passed. Runt frames are passed to the host only if the pass
bad frame bit is set (bit 9 in RXCR register).
RXCE Receive CRC Error
When set, it indicates that a CRC error has occurred on the current received frame. A CRC
error frame is passed to the host only if the pass bad frame bit is set (bit 9 in RXCR register)
Description
Reserved.
RXBX Receive Byte Count
Receive byte count.
70
KSZ8841-16/32 MQL/MVL/MBL
M9999-102207-1.6