Electronic Components Datasheet Search |
|
FDC37N972 Datasheet(PDF) 79 Page - SMSC Corporation |
|
FDC37N972 Datasheet(HTML) 79 Page - SMSC Corporation |
79 / 390 page 79 When the FDC is disabled, powered down or inactive the FDC output pins will tri-state allowing ‘hot- swapping’ of the Floppy Disk Drive. The following table lists the five control/configuration mechanisms that power down or deactivate the FDC logical device. TABLE 47 - FDC HOT SWAPPING MECHANISMS MECHANISM FDC OUTPUT PINS STATE Tri- State Tri-State Tri-State Tri-State (Note 1) Tri-State (Note 2) FDC Logical Dev Activate bit =0: FDC LD deactivated =1: FDC LD activated Refer to the description of the FDC Logical Device Configuration register 0x30 in the Configuration section of the FDC37N972 Specification. 0 X 1 1 1 FDC Logical Dev Base Address 0x100 < Base < 0x0FF8: FDC LD Base Address Valid. 0xFFF < Base < 0x100: FDC LD Base Address Invalid. Refer to the description of the FDC Base I/O Address registers in the Configuration section of the FDC37N972 Specification. X INVALID BASE ADDRESS VALID BASE ADDRESS VALID BASE ADDRESS VALID BASE ADDRESS GCR 0x22 bit-0 (FDC Power) =0: Power Off =1: Power On Refer to the description of the Global Config Register 0x22 in the Configuration section of the FDC37N972 Specification. X X 0 1 1 DSR, bit-6 (pwr down) =0: Normal Run =1: Manual Pwr down Refer to the description of the DSR in the FDC section of any SMSC Super or Ultra I/O data sheet. X X X 1 0 |
Similar Part No. - FDC37N972 |
|
Similar Description - FDC37N972 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |