ATA Command Matrix

This information is current up to ACS-5, and includes obsolete commands from prior versions of the standard.

Opcode	Name	Transfer	Parameters	Standard
00	NOP	none	8-bit	ATA-1 to present
01
02
03	CFA REQUEST EXTENDED ERROR CODE	none	8-bit	ATA-4 to present
04
05
06	DATA SET MANAGEMENT	DMA	16-bit	ACS-2 to present
07	DATA SET MANAGEMENT XL	DMA	16-bit	ACS-4 to present
08	DEVICE RESET	none	8-bit	ATA-3 to ACS-3
09
0A
0B	REQUEST SENSE DATA EXT	none	16-bit	ACS-2 to present
0C
0D
0E
0F
10	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-3
11	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
12	GET PHYSICAL ELEMENT STATUS	DMA	16-bit	ACS-4 to present
12	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
13	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
14	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
15	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
16	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
17	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
18	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
19	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
1A	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
1B	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
1C	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
1D	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
1E	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
1F	RECALIBRATE	none	8-bit	IBM PC/AT to ATA-2
20	READ SECTOR(S)	PIO	8-bit	IBM PC/AT to present
21	READ SECTOR(S) (without retry)	PIO	8-bit	IBM PC/AT to ATA-4
22	READ LONG	PIO	8-bit	IBM PC/AT to ATA-3
23	READ LONG (without retry)	PIO	8-bit	IBM PC/AT to ATA-3
24	READ SECTOR(S) EXT	PIO	16-bit	ATA-6 to present
25	READ DMA EXT	DMA	16-bit	ATA-6 to present
26	READ DMA QUEUED EXT	queued DMA	16-bit	ATA-6 to ATA8-ACS
27	READ NATIVE MAX ADDRESS EXT	none	16-bit	ATA-6 to ACS-2
28
29	READ MULTIPLE EXT	PIO	16-bit	ATA-6 to ACS-3
2A	READ STREAM DMA EXT	DMA	16-bit	ATA-7 to present
2B	READ STREAM EXT	PIO	16-bit	ATA-7 to present
2C
2D
2E
2F	READ LOG EXT	PIO	16-bit	ATA-6 to present
30	WRITE SECTOR(S)	PIO	8-bit	IBM PC/AT to present
31	WRITE SECTOR(S) (without retry)	PIO	8-bit	IBM PC/AT to ATA-4
32	WRITE LONG	PIO	8-bit	IBM PC/AT to ATA-3
33	WRITE LONG (without retry)	PIO	8-bit	IBM PC/AT to ATA-3
34	WRITE SECTOR(S) EXT	PIO	16-bit	ATA-6 to present
35	WRITE DMA EXT	DMA	16-bit	ATA-6 to present
36	WRITE DMA QUEUED EXT	queued DMA	16-bit	ATA-6 to ATA8-ACS
37	SET MAX ADDRESS EXT	none	16-bit	ATA-6 to ACS-2
38	CFA WRITE SECTORS WITHOUT ERASE	PIO	8-bit	ATA-4 to present
39	WRITE MULTIPLE EXT	PIO	16-bit	ATA-6 to ACS-3
3A	WRITE STREAM DMA EXT	DMA	16-bit	ATA-7 to present
3B	WRITE STREAM EXT	PIO	16-bit	ATA-7 to present
3C	WRITE VERIFY	PIO	8-bit	ATA-1 to ATA-3
3D	WRITE DMA FUA EXT	DMA	16-bit	ATA-7 to present
3E	WRITE DMA QUEUED FUA EXT	queued DMA	16-bit	ATA-7 to ATA8-ACS
3F	WRITE LOG EXT	PIO	16-bit	ATA-6 to present
40	READ VERIFY SECTOR(S)	none	8-bit	IBM PC/AT to present
41	READ VERIFY SECTOR(S) (without retry)	none	8-bit	IBM PC/AT to ATA-4
42	READ VERIFY SECTOR(S) EXT	none	16-bit	ATA-6 to present
43
44	ZERO EXT	none	16-bit	ACS-4 to present
45	WRITE UNCORRECTABLE EXT	none	16-bit	ATA8-ACS to present
46
47	READ LOG DMA EXT	DMA	16-bit	ATA8-ACS to present
48
49
4A	ZAC Management In	DMA	16-bit	ACS-4 to present
4B
4C
4D
4E
4F
50	FORMAT TRACK	PIO	8-bit	IBM PC/AT to ATA-3
51	CONFIGURE STREAM	none	16-bit	ATA-7 to present
52
53
54
55
56
57	WRITE LOG DMA EXT	DMA	16-bit	ATA8-ACS to present
58
59
5A
5B	TRUSTED NON-DATA	none	8-bit	ACS-2 to present
5C	TRUSTED RECEIVE	PIO	8-bit	ATA8-ACS to present
5D	TRUSTED RECEIVE DMA	DMA	8-bit	ATA8-ACS to present
5E	TRUSTED SEND	PIO	8-bit	ATA8-ACS to present
5F	TRUSTED SEND DMA	DMA	8-bit	ATA8-ACS to present
60	READ FPDMA QUEUED	queued DMA	16-bit	ATA8-ACS to present
61	WRITE FPDMA QUEUED	queued DMA	16-bit	ATA8-ACS to present
62
63	NCQ NON-DATA	none	16-bit	ACS-3 to present
64	SEND FPDMA QUEUED	queued DMA	16-bit	ACS-3 to present
65	RECEIVE FPDMA QUEUED	queued DMA	16-bit	ACS-3 to present
66
67
68
69
6A
6B
6C
6D
6E
6F
70	SEEK	none	8-bit	IBM PC/AT to ATA-6
71	SEEK	none	8-bit	IBM PC/AT to ATA-2
72	SEEK	none	8-bit	IBM PC/AT to ATA-2
73	SEEK	none	8-bit	IBM PC/AT to ATA-2
74	SEEK	none	8-bit	IBM PC/AT to ATA-2
75	SEEK	none	8-bit	IBM PC/AT to ATA-2
76	SEEK	none	8-bit	IBM PC/AT to ATA-2
77	SET DATE & TIME EXT	none	16-bit	ACS-3 to present
77	SEEK	none	8-bit	IBM PC/AT to ATA-2
78	ACCESSIBLE MAX ADDRESS CONFIGURATION	none	16-bit	ACS-3 to present
78	SEEK	none	8-bit	IBM PC/AT to ATA-2
79	SEEK	none	8-bit	IBM PC/AT to ATA-2
7A	SEEK	none	8-bit	IBM PC/AT to ATA-2
7B	SEEK	none	8-bit	IBM PC/AT to ATA-2
7C	REMOVE ELEMENT AND TRUNCATE	none	16-bit	ACS-4 to present
7C	SEEK	none	8-bit	IBM PC/AT to ATA-2
7D	RESTORE ELEMENTS AND REBUILD	none	16-bit	ACS-5 to present
7D	SEEK	none	8-bit	IBM PC/AT to ATA-2
7E	REMOVE ELEMENT AND MODIFY ZONES	none	16-bit	ACS-5 to present
7E	SEEK	none	8-bit	IBM PC/AT to ATA-2
7F	SEEK	none	8-bit	IBM PC/AT to ATA-2
80	Vendor Specific
81	Vendor Specific
82	Vendor Specific
83	Vendor Specific
84	Vendor Specific
85	Vendor Specific
86	Vendor Specific
87	CFA TRANSLATE SECTOR	PIO	8-bit	ATA-4 to present
88	Vendor Specific
89	Vendor Specific
8A	Vendor Specific
8B	Vendor Specific
8C	Vendor Specific
8D	Vendor Specific
8E	Vendor Specific
8F	Vendor Specific
90	EXECUTE DEVICE DIAGNOSTIC	none	8-bit	IBM PC/AT to present
91	INITIALIZE DEVICE PARAMETERS	none	8-bit	IBM PC/AT to ATA-5
92	DOWNLOAD MICROCODE	PIO	8-bit	ATA-2 to present
93	DOWNLOAD MICROCODE DMA	DMA	8-bit	ACS-2 to present
94	STANDBY IMMEDIATE	none	8-bit	ATA-1 to ATA-3
95	IDLE IMMEDIATE	none	8-bit	ATA-1 to ATA-3
96	MUTATE EXT	none	16-bit	ACS-5 to present
96	STANDBY	none	8-bit	ATA-1 to ATA-3
97	IDLE	none	8-bit	ATA-1 to ATA-3
98	CHECK POWER MODE	none	8-bit	ATA-1 to ATA-3
99	SLEEP	none	8-bit	ATA-1 to ATA-3
9A	Vendor Specific
9B
9C
9D
9E
9F	ZAC Management Out	DMA	16-bit	ACS-4 to present
A0	PACKET	packet	8-bit	ATA-3 to ACS-3
A1	IDENTIFY PACKET DEVICE	PIO	8-bit	ATA-3 to ACS-3
A2	SERVICE	varies	8-bit	ATA-3 to ATA8-ACS
A3
A4
A5
A6
A7
A8
A9
AA
AB
AC
AD
AE
AF
B0	SMART	PIO	8-bit	ATA-3 to present
B1	Device Configuration Overlay	PIO	8-bit	ATA-6 to ACS-2
B2	SET SECTOR CONFIGURATON EXT	none	16-bit	ACS-4 to present
B3
B4	Sanitize Device	none	16-bit	ACS-2 to present
B5
B6	NV Cache	DMA	16-bit	ATA8-ACS to ACS-2
B7	Reserved for CFA
B8	Reserved for CFA
B9	Reserved for CFA
BA	Reserved for CFA
BB	Reserved for CFA
BC
BD
BE
BF
C0	CFA ERASE SECTORS	none	8-bit	ATA-4 to ACS-2
C1	Vendor Specific
C2	Vendor Specific
C3	Vendor Specific
C4	READ MULTIPLE	PIO	8-bit	ATA-1 to ACS-3
C5	WRITE MULTIPLE	PIO	8-bit	ATA-1 to ACS-3
C6	SET MULTIPLE MODE	none	8-bit	ATA-1 to ACS-3
C7	READ DMA QUEUED	queued DMA	8-bit	ATA-4 to ATA8-ACS
C8	READ DMA	DMA	8-bit	ATA-1 to present
C9	READ DMA (without retry)	DMA	8-bit	ATA-1 to ATA-4
CA	WRITE DMA	DMA	8-bit	ATA-1 to present
CB	WRITE DMA (without retry)	DMA	8-bit	ATA-1 to ATA-4
CC	WRITE DMA QUEUED	queued DMA	8-bit	ATA-4 to ATA8-ACS
CD	CFA WRITE MULTIPLE WITHOUT ERASE	PIO	8-bit	ATA-4 to present
CE	WRITE MULTIPLE FUA EXT	PIO	16-bit	ATA-7 to ACS-3
CF
D0
D1	CHECK MEDIA CARD TYPE	none	8-bit	ATA-6 to ACS-2
D2
D3
D4
D5
D6
D7
D8
D9
DA	GET MEDIA STATUS	none	8-bit	ATA-3 to ATA-7
DB	ACKNOWLEDGE MEDIA CHANGE	none	8-bit	ATA-1 to ATA-2
DC	BOOT - POST-BOOT	none	8-bit	ATA-1 to ATA-2
DD	BOOT - PRE-BOOT	none	8-bit	ATA-1 to ATA-2
DE	MEDIA LOCK	none	8-bit	ATA-1 to ATA-7
DF	MEDIA UNLOCK	none	8-bit	ATA-1 to ATA-7
E0	STANDBY IMMEDIATE	none	8-bit	ATA-1 to present
E1	IDLE IMMEDIATE	none	8-bit	ATA-1 to present
E2	STANDBY	none	8-bit	ATA-1 to present
E3	IDLE	none	8-bit	ATA-1 to present
E4	READ BUFFER	PIO	8-bit	ATA-1 to present
E5	CHECK POWER MODE	none	8-bit	ATA-1 to present
E6	SLEEP	none	8-bit	ATA-1 to present
E7	FLUSH CACHE	none	8-bit	ATA-4 to present
E8	WRITE BUFFER	PIO	8-bit	ATA-1 to present
E9	READ BUFFER DMA	DMA	8-bit	ACS-2 to present
E9	WRITE SAME		8-bit	ATA-1 to ATA-2
EA	FLUSH CACHE EXT	none	8-bit	ATA-6 to present
EB	WRITE BUFFER DMA	DMA	8-bit	ACS-2 to present
EC	IDENTIFY DEVICE	PIO	8-bit	ATA-1 to present
ED	MEDIA EJECT	none	8-bit	ATA-1 to ATA-7
EE	IDENTIFY DEVICE DMA	DMA	8-bit	ATA-3
EF	SET FEATURES	none	8-bit	ATA-1 to present
F0	Vendor Specific
F1	SECURITY SET PASSWORD	PIO	8-bit	ATA-3 to present
F2	SECURITY UNLOCK	PIO	8-bit	ATA-3 to present
F3	SECURITY ERASE PREPARE	none	8-bit	ATA-3 to present
F4	SECURITY ERASE UNIT	PIO	8-bit	ATA-3 to present
F5	SECURITY FREEZE LOCK	none	8-bit	ATA-3 to present
F6	SECURITY DISABLE PASSWORD	PIO	8-bit	ATA-3 to present
F7	Vendor Specific
F8	READ NATIVE MAX ADDRESS	none	8-bit	ATA-4 to ACS-2
F9	SET MAX ADDRESS	none	8-bit	ATA-4 to ACS-2
FA	Vendor Specific
FB	Vendor Specific
FC	Vendor Specific
FD	Vendor Specific
FE	Vendor Specific
FF	Vendor Specific