Ethernet Subsystem Registers
14.5.6.2 P0_MAX_BLKS Register (offset = 8h) [reset = 104h]
P0_MAX_BLKS is shown in
and described in
CPSW PORT 0 MAXIMUM FIFO BLOCKS REGISTER
Figure 14-122. P0_MAX_BLKS Register
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
P0_TX_MAX_BLKS
R/W-10h
7
6
5
4
3
2
1
0
P0_TX_MAX_BLKS
P0_RX_MAX_BLKS
R/W-10h
R/W-4h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 14-137. P0_MAX_BLKS Register Field Descriptions
Bit
Field
Type
Reset
Description
8-4
P0_TX_MAX_BLKS
R/W
10h
Transmit FIFO Maximum Blocks - This value is the maximum
number of 1k memory blocks that may be allocated to the FIFO's
logical transmit priority queues.
0x10 is the recommended value of p0_tx_max_blks.
Port 0 should remain in flow control mode.
0xe is the minimum value tx max blks.
3-0
P0_RX_MAX_BLKS
R/W
4h
Receive FIFO Maximum Blocks - This value is the maximum number
of 1k memory blocks that may be allocated to the FIFO's logical
receive queue.
0x4 is the recommended value.
0x3 is the minimum value rx max blks and 0x6 is the maximum
value.
1358
Ethernet Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated