參數(shù)資料
型號: W83977CTF-PW
英文描述: PERIPHERAL (MULTIFUNCTION) CONTROLLER
中文描述: 周邊(多功能)控制器
文件頁數(shù): 110/161頁
文件大?。?/td> 592K
代理商: W83977CTF-PW
W83977EF/ CTF
PRELIMINARY
Publication Release Date: March 1999
-101 -
Revision A1
Bit 3 - 2 Interface Mode
= 11 AT Mode (Default)
= 10 (Reserved)
= 01 PS/2
= 00 Model 30
Bit 1: FDC DMA Mode
= 0 Burst Mode is enabled
= 1 Non-Burst Mode (Default)
Bit 0: Floppy Mode
= 0 Normal Floppy Mode (Default)
= 1 Enhanced 3-mode FDD
CRF1 (Default 0x00)
Bit 7 - 6: Boot Floppy
= 00 FDD A
= 01 FDD B
= 10 FDD C
= 11 FDD D
Bit 5, 4: Media ID1, Media ID0. These bits will be reflected on FDC's Tape Drive Register bit 7, 6.
Bit 3 - 2: Density Select
= 00 Normal (Default)
= 01 Normal
= 10 1 ( Forced to logic 1)
= 11 0 ( Forced to logic 0)
Bit 1: DISFDDWR
= 0 Enable FDD write.
= 1 Disable FDD write(forces pins WE, WD stay high).
Bit 0: SWWP
= 0 Normal, use WP to determine whether the FDD is write protected or not.
= 1 FDD is always write-protected.
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