參數(shù)資料
型號(hào)： GT-48208
廠商： Galileo Technology Services, LLC
英文描述： Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高級(jí)交換式 10+10/100 BaseX以太網(wǎng)控制器)
中文描述： 先進(jìn)的交換式以太網(wǎng)控制器的10 10/100 BaseX（高級(jí)交換式10 10/100 BaseX以太網(wǎng)控制器）
文件頁數(shù)： 116/135頁
文件大?。?/td> 1619K
代理商： GT-48208
GT-482xx Switched Ethernet Controllers for 10+10/100 BaseX
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Revision 1.2
81
18.
REGISTER TABLES
The GT-482xx incorporates Command registers and various counters for management purposes. The GT-482xx
can work in stand-alone mode. In this mode there is no requirement for CPU Intervention (a system with no CPU)
in which case the default values of the control registers are used. The GT-482xx internal registers have 32-bit
accesses.
Table 21 lists the registers, their offset, read/write attributes and the corresponding tables and page numbers that
provide detailed descriptions for each register.
These registers must be accessed as single data accesses only (burst accesses are not allowed).
Table 21: Register Map Table
D escr ip t ion
O ff set
R ead/Wr it e
Ta ble/Page
N u mber
GT-482xx Base address
0x0
R/W
Global Control register
0x4
R/W
Status Register
0x8
Read only
Sniffer + Aging Timer
0xC
R/W
Serial Parameters for 10Mbps
0x10
R/W
Watchdog and Tx Threshold
0x14
R/W
Interrupt Cause
0x18
R/W
Interrupt Mask
0x1C
R/W
Cpu Tx High Desc1
0x20
R/W
Cpu Tx High Desc2
0x24
R/W
Cpu Tx Low Desc1
0x28
R/W
Cpu Tx Low Desc2
0x2C
R/W
Cpu EL Free Req
0x30
R/W
Cpu Empty Buffer
0x34
Read only
Cpu Enqueue1
0x38
R/W
Cpu Enqueue2
0x3C
R/W
Cpu New Address1
0x40
Write only
Cpu New Address2
0x44
Write only
Cpu New Address3
0x48
R/W
Cpu Query
0x4C
Read only
SMI Register
0x50
R/W
802.1Q Ethertype
0x54
R/W
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