參數(shù)資料
型號(hào)： KSZ8995XA
廠商： MICREL INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： Integrated 5-Port 10/100 QoS Switch
中文描述： DATACOM, LAN SWITCHING CIRCUIT, PQFP128
封裝： LEAD FREE, PLASTIC, QFP-128
文件頁數(shù)： 29/51頁
文件大小： 305K
代理商： KSZ8995XA
May 2005
29
M9999-051305
KS8995XA
Register Map
Micrel, Inc.
Offset
Decimal
0-1
2-11
12-15
16-29
30-31
32-45
46-47
48-61
62-63
64-77
78-79
80-93
94-95
96-103
104-109
Hex
0x00-0x01
0x02-0x0B
0x0C-0x0F
0x10-0x1D
0x1E-0x2F
0x20-0x2D
0x2E-0x2F
0x30-0x3D
0x3E-0x3F
0x40-0x4D
0x4E-0x4F
0x50-0x5D
0x5E-0x5F
0x60-0x67
0x68-0x6D
Description
Chip ID Registers
Global Control Registers
Reserved
Port 1 Control Registers
Port 1 Status Registers
Port 2 Control Registers
Port 2 Status Registers
Port 3 Control Registers
Port 3 Status Registers
Port 4 Control Registers
Port 4 Status Registers
Port 5 Control Registers
Port 5 Status Registers
TOS Priority Control Registers
MAC Address Registers
Global Registers
Address
Register 0 (0x00): Chip ID0
7-0
Register 1 (0x01): Chip ID1/Start Switch
7-4
3-1
0
Name
Description
Mode
Default
Family ID
Chip family
RO
0x95
Chip ID
Revision ID
Start switch
0x0 is assigned to 95 series. (95XA)
Revision ID
The chip starts automatically after trying to read the
external EEPROM. If EEPROM does not exist, the
chip will use default values for all internal registers. If
EEPROM is present, the contents in the EEPROM will
be checked. The switch will check: (1) Register 0 =
0x95, (2) Register 1 [7:4] = 0x0. If this check is OK,
the contents in the EEPROM will override chip register
default values.
RO
RO
RW
0x0
0x2
—
Register 2 (0x02): Global Control 0
7
6-4
Reserved
802.1p base priority
Reserved
Used to classify priority for incoming 802.1q packets.
“User priority” is compared against this value
: classified as high priority
< : classified as low priority
1 = enable PHY MII interface
(note: if not enabled, the switch will tri-state all outputs.)
R/W
R/W
0x0
0x4
3
Enable PHY MII
R/W
Pin LED[5][1] strap
option. Pull-down
(0): isolate. Pull-up
(1): Enable.
Note: LED[5][1]
has internal pull-up.
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