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NinjaC bảng dữ liệu(PDF) 21 Page - Infineon Technologies AG |
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NinjaC bảng dữ liệu(HTML) 21 Page - Infineon Technologies AG |
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21 / 82 page ![]() Data Sheet 21 Rev. 1.02, 2005-11-25 Ninja C/CX ADM6992C/CX Function Description for auto negotiation purpose. These pins are also used for evaluating the default value in the base mode control register (register 0H) according to Table 10. In order to make these pins have the same Read/Write priority as software, they should be programmed to 11111111B in case a user wishes to update the advertisement register through software. 3.3 Switch Functional Description The NINJA C/CX (ADM6992C/CX) supports three types of data forwarding mode, store & forward mode, modified and MII cut-through. 3.3.1 Store & Forward Mode The NINJA C/CX (ADM6992C/CX) allows switching between different speed media (e.g. 10BaseX and 100BaseX) in store & forward mode. The entire received frame will be stored into its packet buffer. The NINJA C/CX (ADM6992C/CX) checks the length and frame check sequence (FCS) of the received frame to prevent the forwarding of corrupted packets before forwarding to the destination port. A MAC address filtering process can be enabled to filter local traffic to improve overall network performance. The maximum packet length is up to 9216 bytes in this mode. The maximum packet length is defined in Bit [13:0] of EEPROM register 03H. Table 10 Speed Configuration Advertis e all capabilit y Advertis e single capabili ty Paralle l detect follow IEEE std. Auto Negoti- ation (Pin & EEPROM) Speed (Pin & EEPROM ) Duplex (Pin & EEPROM ) Auto Negot iation Advertise Capability Parallel Detect Capability 10 0F 10 0H 10 F 10 H 10 0F 10 0H 10 F 10 H 1 0 0 1 X X 1 1 1 1 1 1 0 1 0 1 0 1 1 X X 1 1 1 1 1 0 1 0 1 1 1 0 1 X X 1 1 0 0 0 1 0 0 0 1 1 1 1 X X 1 1 0 0 0 0 1 0 0 0 0 0 1 1 1 1 1 1 1 1 1 0 1 0 0 0 1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 1 1 1 1 0 0 0 1 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 1 0 0 0 0 X 1 1 0 1 0 1 0 1 0 1 0 1 0 1 X 1 1 0 1 0 1 0 0 0 1 0 0 0 0 0 1 0 1 1 0 0 1 1 0 0 1 0 0 0 1 1 0 1 1 0 0 1 1 0 0 0 1 0 1 0 1 0 1 1 0 0 1 0 0 0 1 0 0 1 1 1 0 1 1 0 0 1 0 0 0 0 1 0 X X 1 0 0 1 0 0 0 1 0 0 0 1 X X X 0 1 1 0 1 — — — — — — — X X X 0 1 0 0 — 1 — — — — — — X X X 0 0 1 0 — — 1 — — — — — X X X 0 0 0 0 — — — 1 — — — — |
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