參數(shù)資料
型號: DS33Z11
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: Ethernet Mapper
中文描述: DATACOM, NETWORK INTERFACE SUPPORT CIRCUIT, PBGA169
封裝: 14 X 14 MM, 1 MM PITCH, CSBGA-169
文件頁數(shù): 137/169頁
文件大?。?/td> 1049K
代理商: DS33Z11
DS33Z11 Ethernet Mapper
Register Name:
Register Description:
Register Address:
0334h:
Bit #
Name
Default
0335h:
Bit #
Name
Default
0336h:
Bit #
Name
Default
0337h:
Bit #
Name
Default
Bits 0 - 31: Frames Aborted Due to FIFO Under Run Counter (TXFRMU[0:31])
32 bit value indicating the
number of frames aborted due to FIFO under run. Each time a frame is aborted due to FIFO under run, this
counter is incremented by 1. This counter resets only upon device reset, does not saturate, and rolls-over to zero
upon reaching the maximum value. The user should ensure that the measurement period is less than the
minimum length of time required for the counter to increment 2^32-1 times at the maximum frame rate. The user
should store the value from the beginning of the measurement period for later calculations, and take into account
the possibility of a rollover to occurring.
137 of 169
SU.TXFRMUNDR
MAC Transmit Frame Under Run Counter
0334h (indirect)
31
30
29
28
27
26
25
24
TXFRMU31
0
TXFRMU30 TXFRMU29
0
TXFRMU28 TXFRMU27
0
TXFRMU26
0
TXFRMU25 TXFRMU24
0
0
0
0
23
22
21
20
19
18
17
16
TXFRMU23
0
TXFRMU22 TXFRMU21
0
TXFRMU20 TXFRMU19
0
TXFRMU18
0
TXFRMU17 TXFRMU16
0
0
0
0
15
14
13
12
11
10
09
08
TXFRMU15
0
TXFRMU14 TXFRMU13
0
TXFRMU12 TXFRMU11
0
TXFRMU10
0
TXFRMU9
0
TXFRMU8
0
0
0
07
06
05
04
03
02
01
00
TXFRMU7
0
TXFRMU6
0
TXFRMU5
0
TXFRMU4
0
TXFRMU3
0
TXFRMU2
0
TXFRMU1
0
TXFRMU0
0
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