adm6992c Infineon Technologies Corporation, adm6992c Datasheet - Page 26
adm6992c
Manufacturer Part Number
adm6992c
Description
Two Port Bridge Fiber To Fast Ethernet Converter
Manufacturer
Infineon Technologies Corporation
Datasheet
1.ADM6992C.pdf
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Figure 4
3.6.1
The SMI of NINJA C/CX (ADM6992C/CX) supports a preamble suppression mode. If the station management
entity (i.e. MAC or other management controller) determines that all devices which are connected to the same
SDC/SDIO in the system support preamble suppression, then the station management entity needs not to
generate preamble for each management transaction. The NINJA C/CX (ADM6992C/CX) requires a single
initialization sequence of 35 bits of preamble following power-up/hardware reset. This requirement is generally met
by pulling-up the resistor of SDIO. While the NINJA C/CX (ADM6992C/CX) will respond to management accesses
without preamble, a minimum of one idle bit between management transactions is required.
When NINJA C/CX (ADM6992C/CX) detects that there is address match, then it will enable Read/Write capability
for external access. When address is mismatched, then NINJA C/CX (ADM6992C/CX) will tristate the SDIO pin.
3.6.2
The following 2 steps are for reading the data of EEPROM Register via SMI Interface.
Write the address of the desired EEPROM Register and READ command to SMI Register 013
EX. <35”1”s><01><01><00000><10011><10><000 0000000 000001 0000000000000000>
Read NINJA C/CX (ADM6992C/CX) Internal EEPROM mapping Reg.1
desired EEPROM Register will be in bit [15:0].
EX. <35”1”s><01><10><00000><10011><z0><000 0000000 000000 0001000001001111>
Get NINJA C/CX (ADM6992C/CX) Internal EEPROM mapping Reg.1
Data Sheet
SMI Write Operation
Preamble Suppression
Read EEPROM Register via SMI Register
CMD ADDRESS DATA
26
CMD ADDRESS DATA
H
. value 104f.
H
. Read SMI Register 013
Function Description
Rev. 1.02, 2005-11-25
ADM6992C/CX
H
H
Ninja C/CX
. The data of
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