PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 687

• Manufacturer Part Number: PNX1500E
• Manufacturer: NXP Semiconductors

Specifications of PNX1500E

• Lead Free Status / Rohs Status: Not Compliant

NXP Semiconductors
Volume 1 of 1
Table 2: LAN100 Registers
PNX15XX_PNX952X_SER_N_4
Product data sheet
Bit
15:0
Offset 0x07 2148
The QoSTimeout Register is only used in QoS mode, i.e., when the QoSEnable bit of the Command register is set.
31:16
15:0
Offset 0x07 2158
The Transmit Status Vector registers TSV0 and TSV1 store the most recent transmit status returned by the MII Interface.
Since the status vector consists of more than 4 bytes, status is distributed over two registers: TSV0 and TSV1.
31
30
29
28
27-12
11
10
9
8
7
6
5
4
3
2
1
0
Offset 0x07 215C
The Transmit Status Vector registers TSV0 and TSV1 store the most recent transmit status returned by the MII Interface.
Since the status vector consists of more than 4 bytes, status is distributed over two registers: TSV0 and TSV1.
31:20
Symbol
BlockZone
-
QoSTimeout
VLAN
Backpressure
PAUSE
Control frame
Total bytes
Underrun
Giant
LateCollision
MaximumCollision
ExcessiveDefer
PacketDefer
Broadcast
Multicast
Done
LengthOutOfRange
LengthCheckError
CRCError
-
Transmit Quality Of Service Time-out Register (QoSTimeout)
Transmit Status Vector 0 Register (TSV0)
Transmit Status Vector 0 Register (TSV1)
…Continued
Acces
s
R/W
-
R/W
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
-
Value
0
Rev. 4.0 — 03 December 2007
Description
Time margin for a transmit time-stamp during which no new
non-real-time packets will be transmitted to free up the Ethernet for
upcoming real-time transmissions.
Unused
Specifies the maximum number of clock cycles a low-priority
transmission must wait for transmission. If the time-out counter
expires, the low-priority transmission will get the highest priority.
QoSTimeout is specified in units of 64 times the transmit clock
cycle.
Set if the frame’s length/type field contained 0x8100, which is the
VLAN protocol identifier.
Set if carrier-sense method back pressure was previously applied.
Set if the frame was a control frame with a valid PAUSE opcode.
Set if the frame was a control frame.
The total number of bytes transferred, including collided attempts.
Set if the host side caused a buffer underrun condition.
Set if the byte count in the frame was greater than [15:0].
Set if a collision occurred beyond the collision window (512 bit
times).
If set, the packet was aborted because it exceeded the maximum
allowed number of collisions.
If set, the packet was deferred in excess of 6071 nibble times in
100Mb/s, or 24287 bit times in 10Mb/s mode.
If set, the packet was deferred for at least one attempt, but less then
an excessive defer.
Set if the packet’s destination was a broadcast address.
Set if the packet’s destination was a multicast address.
Indicates that the transmission of the packet was completed.
Indicates that the frame type/length field was larger than 1500
bytes.
Indicates that the frame length field does not match the actual
number of data items, and is not a type field.
Set if the attached CRC in the packet did not match the CRC
generated internally.
Unused
Chapter 23: LAN100 — Ethernet Media Access Controller
PNX15xx/952x Series
© NXP B.V. 2007. All rights reserved.
23-687