
360014937
10.7.7.2 SMART commands
This register should be set to C2h for SMART commands
10.7.8 Device/Head Register
- CS0
Read / Write
The value of this register is used to select the drive, Master or Slave, and head. On multiple sector read/write operation that requires to cross track boundaries, the head select bit will be updated to reflect the currently selected head number.
1
L
1
DEV
HS3
HS2
HS1
HS0
Bit 7 | Reserved (recommended to set 1) |
Bit 6 | L (Select LBA mode) L=0: CHS mode. L=1: LBA mode. |
Bit 5 | Reserved (recommended to set 1) |
Bit 4 | DEV (Device Select): |
| - (Master/Slave mode) This bit is used to select the drive. DEV= 0 indicates the first fixed disk drive |
| (Master), and DEV= 1 indicates the second (Slave). |
| - (Single mode) should be 0. If this is 1, a drive is not selected but 00h shall be returned to status |
| register. |
Bit 3 - | |
Bit 0 | |
| through 24 of the LBA. |
Copyright ©2000 Toshiba corporation. All rights reserved.
- 554 -