Fujitsu MHK2120AT, MHK2090AT, MHK2060AT, MHJ2181AT manual Interface

Contents

4.6.1	Read/write preamplifier (PreAMP)							4-9
4.6.2	Write circuit		4-10
4.6.3	Read circuit	4-12
4.6.4	Digital PLL circuit			4-13
4.7	Servo Control		4-14
4.7.1	Servo control circuit				4-14
4.7.2	Data-surface servo format					4-18
4.7.3	Servo frame format 4-18
4.7.4	Actuator motor control				4-19
4.7.5	Spindle motor control				4-20
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		5-77
5.4	Command Protocol			5-79
5.4.1	Data transferring commands from device to host								5-79
5.4.2	Data transferring commands from host to device								5-81
5.4.3	Commands without data transfer							5-83
5.4.4	Other commands			5-84
5.4.5	DMA data transfer commands						5-84
5.5	Ultra DMA Feature Set				5-86
5.5.1	Overview	5-86

C141-E088-01EN xi