Lenovo NetVista Hardware Maintenance Manual (HMM) for Aptiva and NetVista 2255 - Page 133
IDE Cable Connector Signals
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IDE Cable Connector Signals Pin Signal Name 1 Host Reset 2 Ground 3 Host Data 7 4 Host Data 8 5 Host Data 6 6 Host Data 9 7 Host Data 5 8 Host Data 10 9 Host Data 4 10 Host Data 11 11 Host Data 3 12 Host Data 12 13 Host Data 2 14 Host Data 13 15 Host Data 1 16 Host Data 14 17 Host Data 0 18 Host Data 15 19 Ground 20 No Connection I/O Pin O 21 N/A 22 I/O 23 I/O 24 I/O 25 I/O 26 I/O 27 I/O 28 I/O 29 I/O 30 I/O 31 I/O 32 I/O 33 I/O 34 I/O 35 I/O 36 I/O 37 I/O 38 Power 39 N/A 40 Signal Name DMA Request Ground Host IOW Ground Host IOR Ground I/O Channel Ready No Connection DMA Acknowledge Ground Host IRQ No Connection Host A1 No Connection Host A0 Host A2 Host CS0 Host CS1 ACTIVE bar Ground I/O I Power O Power O Power I N/A O Power I N/A O N/A O O O O I Power 133