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IT8875F 데이터시트 PDF




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IT8875F 데이터시트, 핀배열, 회로
IT8875F
PCI Parallel Port
Preliminary Specification V0.1




IT8875F pdf, 반도체, 판매, 대치품
IT8875F
10. Interrupt Controller (INTC) ...................................................................................................................... 43
10.1 Features....................................................................................................................................... 43
10.2 Block Diagram.............................................................................................................................. 43
10.3 Register Descriptions ................................................................................................................... 44
10.3.1 Interrupt Request Register 1 (IRR1R) – Offset INTC_Base + 0h ....................................... 44
10.3.2 Interrupt Request Register 2 (IRR2R) – Offset INTC_Base + 1h ....................................... 44
10.3.3 Interrupt Request Register 3 (IRR3R) – Offset INTC_Base + 2h ....................................... 44
10.3.4 Interrupt Mask Register 1 (IMR1R) – Offset INTC_Base + 4h ........................................... 44
10.3.5 Interrupt Mask Register 2 (IMR2R) – Offset INTC_Base + 5h ........................................... 44
10.3.6 Interrupt Mask Register 3 (IMR3R) – Offset INTC_Base + 6h ........................................... 45
10.3.7 Interrupt Edge/Level Trigger Mode Register 1 (IER1R) – Offset INTC_Base + 8h ............. 45
10.3.8 Interrupt Edge/Level Trigger Mode Register 2 (IER2R) – Offset INTC_Base + 9h ............. 45
10.3.9 Interrupt Edge/Level Trigger Mode Register 3 (IER3R) – Offset INTC_Base + Ah............. 45
10.3.10 S/W Interrupt Generate Register 1 (SIGR1R) – Offset INTC_Base + Ch ....................... 45
10.3.11 S/W Interrupt Generate Register 2 (SIGR2R) – Offset INTC_Base + Dh ....................... 45
10.3.12 S/W Interrupt Generate Register 3 (SIGR3R) – Offset INTC_Base + Eh ....................... 46
11. Parallel Port............................................................................................................................................ 47
11.1 Overview...................................................................................................................................... 47
11.2 SPP and EPP Modes ................................................................................................................... 47
11.3 EPP Mode Operation .................................................................................................................. 49
11.4 ECP Mode Operation .................................................................................................................. 50
12. DC Characteristics.................................................................................................................................. 57
13. Package Information............................................................................................................................... 59
14. Ordering Information............................................................................................................................... 61
FIGURES
Figure 9-1. PCI Configuration Register Structure.......................................................................................... 24
Figure 9-2. PCI Configuration Access Mechanism #1 ................................................................................... 25
Figure 10-1. Block Diagram of the Interrupt Controller .................................................................................. 43
TABLES
Table 4-1. Pins Listed in Numeric Order.........................................................................................................8
Table 5-1. Pin Descriptions of Supplies Signals..............................................................................................9
Table 5-2. Pin Descriptions of PCI Bus Interface Signals................................................................................9
Table 5-3. Pin Descriptions of Partial ISA Bus Signals.................................................................................. 11
Table 5-4. Pin Descriptions of Parallel Port Signals ...................................................................................... 12
Table 5-5. Pin Descriptions of Miscellaneous Signals ................................................................................... 13
Table 9-1. IT8875F Configuration Register Map ........................................................................................... 23
Table 10-1. List of INTC Registers ............................................................................................................... 44
Table 11-1. Parallel Port Connector in Different Modes ................................................................................ 47
Table 11-2. Address Map and Bit Map for SPP and EPP Modes .................................................................. 47
Table 11-3. Bit Map of the ECP Registers .................................................................................................... 50
Table 11-4. ECP Register Definitions ........................................................................................................... 50
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IT8875F

PCI Parallel Port

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