Product manual

36 Cheetah 4LP FC Product Manual, Rev. A
[1] Cheetah 4LP FC drives can format to any multiple of 4 bytes per logical block in the range 180 to 736
bytes and any multiple of 32 bytes per logical block in the range 768 to 4,096 bytes.
39h N Compare
3Ah N Copy and verify
3Bh Y Write buffer
Y Write combined header and data mode (0)
Y Write data mode (2)
N Download microcode mode (4)
Y Download microcode and save modes (5)
N Download microcode with offsets mode (6)
Y Download microcode with offsets and save mode (7)
Y Firmware download option [2]
3Ch Y Read buffer
Y Read combined header and data mode (0)
Y Read data mode (2)
Y Read descriptor mode (3)
3Eh Y Read long
3Fh Y Write long
40h N Change definition
41h N Write same
42-4Bh N Not used
4Ch Y Log Select
4Dh Y Log Sense
4E-4Fh N Note used
50h N XD Write
51h N XP Write
52h N XD Read
53-54h N Not used
55h Y Mode Select (10) [4]
56h Y Reserved (10)
Y 3rd party reserve
N Extend reservation
57h Y Released (10)
58-59h N Not used
5Ah Y Mode Sense (10) [4]
5B-5Fh N Not used
60-7Fh N Not used
80h N XD Write Extended
81h N Rebuild
82-8Fh N Not Used
C0-DFh N Not used
EO-FFh N Not used
Table 10: Supported commands
(continued)
Command code Supported Command name