내부 메모리맵 설명
Ethernet Chips
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Ethernet Chips
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RE: 내부 메모리맵 설명
by becky ·
안녕하세요
그림이 어렵게 나와있는것 같습니다.
우선 Physical memory는 기본적으로 2KB씩 할당되어 있지만 Sn_TXBUF_SIZE(or RX) 레지스터 값을 변경시켜줌으로써 socket별 memory size를 변경할 수 있습니다.(1KB, 2KB, 4KB, 8KB, 16KB로 변경가능하며 총 사이즈가 16KB를 넘지 않아야합니다.)
이에따라 Physical address가 자동으로 할당되어지며 이때 16bit offset address는 자동으로 할당된 영역 내부를 가리키는 Address로 변환되어 사용됩니다.
감사합니다.