參數(shù)資料
型號: AX88195P
廠商: ASIX Electronics Corporation
英文描述: 10/100BASE Local CPU Bus Fast Ethernet MAC Controller
中文描述: 一個10/100Base本地CPU總線快速以太網(wǎng)MAC控制器
文件頁數(shù): 37/37頁
文件大?。?/td> 414K
代理商: AX88195P
ASIX ELECTRONICS CORPORATION
37
AX88195 Local CPU Bus Fast Ethernet MAC Controller
Errata of AX88195 V1
1. Interrupt Status can’t always clean up
Solution : Using software to do clean and check iteration until clean up.
Ex : IOBASE=300 ; Clear Tx/Rx interrupt.
Mov dx,307h
ClrISR :
Mov al,3
Out dx,al
In al,dx
Test al,3
Jz ClrISRDone ; Clear ok
Mov al,0
Out dx,al
Jmp ClrISR
; clear Tx/Rx interrupt
; output to clear ISR
; read ISR
; Check ISR cleared or not
; if not, clear again
ClrISRDone:
; clear successful
2. DTACK can’t fit 68K CPU timing in 68K mode
Solution : Using the DTACK automatic insertion function in 68K CPU.
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