Fujitsu MHM2150AT Manual/User Guide - Page 16
Interface, Ultra DMA Feature Set
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4.6.2 4.6.3 4.6.4 Write circuit 4-11 Read circuit 4-13 Digital PLL circuit 4-14 4.7 Servo Control 4-15 4.7.1 Servo control circuit 4-15 4.7.2 Data-surface servo format 4-18 4.7.3 Servo frame format 4-20 4.7.4 Actuator motor control 4-21 4.7.5 Spindle motor control 4-22 Contents CHAPTER 5 Interface 5-1 5.1 Physical Interface 5-2 5.1.1 Interface signals 5-2 5.1.2 Signal assignment on the connector 5-3 5.2 Logical Interface 5-6 5.2.1 I/O registers 5-7 5.2.2 Command block registers 5-8 5.2.3 Control block registers 5-13 5.3 Host Commands 5-13 5.3.1 Command code and parameters 5-14 5.3.2 Command descriptions 5-16 5.3.3 Error posting 5-83 5.4 Command Protocol 5-85 5.4.1 Data transferring commands from device to host 5-85 5.4.2 Data transferring commands from host to device 5-87 5.4.3 Commands without data transfer 5-89 5.4.4 Other commands 5-90 5.4.5 DMA data transfer commands 5-90 5.5 Ultra DMA Feature Set 5-92 5.5.1 Overview 5-92 5.5.2 Phases of operation 5-93 C141-E104-03EN xi