Sony SDX-1100V/R manual Attribute Identifier Values, Standard Device Type Attributes

12.APPENDIX E: Medium Auxiliary Memory Attribute

The READ ONLY bit indicates whether the attribute is in the read only state. If the READ ONLY bit is one, the attribute is in the read only state. If the READ ONLY bit is zero, the attribute is in the read/write state.

The FORMAT field (Table 12-4) specifies the format of the data in the ATTRIBUTE VALUE field. ATTRIBUTES defined by this standard include a requirement for the contents of the FORMAT field.

		Table 12-4: MAM attribute formats
Format	Name		Description
00b	BINARY		The ATTRIBUTE VALUE will contain binary data.
01b	ACSII		The ATTRIBUTE VALUE field will contain only graphic codes (i.e.
			byte code values 20h through &Eh), will be left-aligned placing any
			unused bytes at the highest offset in the field, contain 20h (i.e. ASCII
			space) in any unused bytes.
10b	TEXT		The attribute contains textual data. The character set is as described
			in the TEXT LOCALIZATION IDENTIFER attribute.
11b	Reserved

The ATTRIBUTE LENGTH field specifies the length in bytes of the ATTRIBUTE VALUE field. Attributes defined by this standard include a requirement for the contents of the ATTRIBUTE LENGTH field.

The ATTRIBUTE VALUE Field contains that current (READ ATTRIBUTE) or desired (WRITE ATTRBUTE) value of the attribute.

12.4.2.Attribute Identifier Values

The values in the ATTRIBUTE IDENTIFIER field are assigned according to the attribute type and whether the attribute is standard or vendor unique (Table 12-5).

Table 12-5: MAM attribute identifier range assignments

Attribute Identifiers		Attribute Type	Standardization
0000h	– 03FFh	Device	Yes
0400h	– 07FFh	Medium	Yes
0800h	– 0BFFh	Host	Yes
0C00h – 0FFFh		Device	Vendor Unique
1000h	– 13FFh	Medium	Vendor Unique
1400h	– 17FFh	Host	Vendor Unique
1800h	– FFFFh	Reserved

Drive will accept and process a WRITE ATTRIBUTES command containing standardized host type attribute identifier values (i.e. 0800h-0BFFh) or vendor unique host type attribute identifier values (i.e., 1400h-17FFh). Standardized host type attribute identifier values may be checked for conformance to the requirements described later.

12.4.3.Standard Device Type Attributes

Device types attributes (Table 12-6) will be maintained and updated by the drive when the medium and associated medium auxiliary memory are present. All supported medium type attributes will have a status of read only.

SONY AIT-5 drive SDX-1100V series Ver.1.0 12-3