K6602705
Rev.3
08.20.01
- 35 -
6.3.2 Commands
6.3.2.1 Command Summary
Commands are issued to the device first loading the Command Block Registers with any information
needed for the command. Then a command code is written to the Command Register, which starts
the execution of the command.
Table 6.4 Command Codes
Command Description Protoc
ol
Clas
s
Code Parameter Setup
FR SC SN CY DH
Read Commands
Read Buffer PI 1 E4h D
Read Sectors PI 1 20h, 21h V V V V
Read Long PI 1 22h, 23h V V V V
Read Multiple PI 1
C4h
VVVV
Read DMA DM 1 C8h, C9h V V V V
Read Verify ND 1 40h, 41h V V V V
Write Commands
Write Buffer PO 2 E8h D
Write Sectors PO 2 30h, 31h V V V V
Write Long PO 2 32h, 33h V V V V
Write Multiple PO 3 C5h V V V V
Write DMA DM 3 CAh,CBh V V V V
Format Track PO 2 50h V V V
Flush Cache ND 1 E7h D
Seek Commands
Recalibrate ND 1 1Xh D
Seek ND 1 7Xh V V V
Mode Set/Check, Diagnostic
Execute Device Diagnostic ND 1 90h D
Initialize Device Parameters ND 1 91h V V
Identify Device PI 1 ECh D
Set Features ND 1 EFh V D
Set Multiple Mode ND 1 C6h V D
Power Control
Check Power Mode ND 1 98h, E5h V D
Idle ND 1 97h, E3h V D
Idle Immediate ND 1 95h, E1h D
Sleep ND 1 99h, E6h D
Standby ND 1 96h, E2h V D
Standby Immediate ND 1 94h, E0h D