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F71806 Datasheet(PDF) 39 Page - Feature Integration Technology Inc. |
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F71806 Datasheet(HTML) 39 Page - Feature Integration Technology Inc. |
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39 / 109 page  July, 2007 V0.26P 37 F71806 7.2.3.6 Tape Drive Register Base + 3 Bit Name R/W Default Description 7-6 Reserved R 00 Reserved. Return 00b when read. 5-4 TYPEID R 11 Reserved in normal function, return 11b when read. If 3 mode FDD function is enabled. These bits indicate the drive type ID. 3-2 Reserved R 11 Reserved. Return 11b when read in normal function. Return 00b when read in 3 mode FDD function. 1-0 TAPESEL R/W 0 These bits assign a logical drive number to be a tape drive. 7.2.3.7 Main Status Register Base + 4 Bit Name R/W Default Description 7 RQM R 0 Request for Master indicates that the controller is ready to send or receive data from the uP through the FIFO. 6 DIO R 0 Data I/O (direction): 0: the controller is expecting a byte to be written to the Data Register. 1: the controller is expecting a byte to be read from the Data Register. 5 NON_DMA R 0 Non DMA Mode: 0: the controller is in DAM mode. 1: the controller is interrupt or software polling mode. 4 FDC_BUSY R 0 This bit indicate that a read or write command is in process. 3 DRV3_BUSY R 0 FDD number 3 is in seek or calibration condition. FDD number 3 is not support in this design. 2 DRV2_BUSY R 0 FDD number 2 is in seek or calibration condition. FDD number 2 is not support in this design. 1 DRV1_BUSY R 0 FDD number 1 is in seek or calibration condition. FDD number 1 is not support in this design. 0 DRV0_BUSY R 0 FDD number 0 is in seek or calibration condition. 7.2.3.8 Data Rate Select Register Base + 4 Bit Name R/W Default Description 7 SOFTRST W 0 A 1 written to this bit will software reset the controller. Auto clear after reset. 6 PWRDOWN W 0 A 1 to this bit will put the controller into low power mode which will turn off the oscillator and data separator circuits. 5 Reserved - - Return 0 when read. |
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