參數(shù)資料
型號: AX88180
廠商: ASIX Electronics Corporation
英文描述: High-Performance Non-PCI 32-bit 10/100/1000M Gigabit Ethernet Controller
中文描述: 高性能非PCI 32位10/100/1000千兆以太網(wǎng)控制器
文件頁數(shù): 19/47頁
文件大小: 420K
代理商: AX88180
AX88180
19
ASIX ELECTRONICS CORPORATION
transmission is finished, AX88180 will auto-clear this bit.
TX Descriptor 2 Occupied
Driver set this bit to ‘1’ to indicate that it had used TX descriptor2. When the
transmission is finished, AX88180 will auto-clear this bit.
TX Descriptor 1 Occupied
Driver set this bit to ‘1’ to indicate that it had used TX descriptor1. When the
transmission is finished, AX88180 will auto-clear this bit.
TX Descriptor 0 Occupied
Driver set this bit to ‘1’ to indicate that it had used TX descriptor0. When the
transmission is finished, AX88180 will auto-clear this bit.
2
TXD2O
R/W
0
1
TXD1O
R/W
0
0
TXD0O
R/W
0
4.7 TXDES0--TX Descriptor0 Register
Offset Address = 0xFC20 Default = 0x0000_0000
Field
Name
Type
Default
31:16
-
R
All 0’s
15
TXD0_EN
R/W
0
Description
Reserved
Transmit TX descriptor 0
If this bit is enabled, MAC will begin to transmit data that are stored in TX
buffer. In former, driver had already written data that is assigned to TX
descriptor0 to TX buffer. This bit will be cleared by hardware when MAC
finished the transmission.
1= enable
0= disable
Reserved
TX packet length (unit: byte)
Driver set this field to indicate AX88180 how many bytes will be
transmitted.
14:13
12:0
-
R
R/W
00
All 0’s
TXD0_LEN
4.8 TXDES1--TX Descriptor1 Register
Offset Address = 0xFC24 Default = 0x0000_0000
Field
Name
Type
Default
31:16
-
R
All 0’s
15
TXD1_EN
R/W
0
Description
Reserved
Transmit TX descriptor 1
If this bit is enabled, MAC will begin to transmit data that are stored in TX
buffer. In former, driver had already written data that is assigned to TX
descriptor1 to TX buffer. This bit will be cleared by hardware when MAC
finished the transmission.
1= enable
0= disable
Reserved
TX packet length (unit: byte)
Driver set this field to indicate AX88180 how many bytes will be
transmitted.
14:13
12:0
-
R
R/W
00
All 0’s
TXD1_LEN
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