5.3.Standby mode

Figure 8 shows the standby sequence.

During access

ldle (Max.24X)

ldle (4.4 - 10X)

Read or Seek

 

 

command

8 s

24 s

Figure 8 Standby Sequence

Rotational speed move onto 4.4 to 10X mode in 8 seconds of the Read or Seek command. After 24 seconds (default value), it move onto standby mode. (a stop spindle motor)

6. Interface

(1)The interface is based on ATA-SPEC, ATAPI-SPEC SFF-8020i Revision 2.6, SFF-8028 Revision

1.0and SFF-8090 version 2.

(Small Form Factor Committee Specification of ATA-Packet Interface for CD-ROMs)

(2)48 types of commands are usable including ATA & ATAPI Commands.

(3)The 128 KByte data buffer handles both high speed and low speed data transmission.

(4)The largest one block size on playback is 2,448 Bytes. The data length for each block is changeable by command.

(5)Please refer to the standard of ATA/ATAPI-4 for details of the interface timing.

6.1.I/O cable

Table 1 shows the cable parameters.

 

Min

Max

Cable length

 

0.46 m

Driver IoL sink current for 5V operation

12 mA

 

Driver IoH source current

 

-400 µA

 

 

 

Cable capacitive loading

 

200 pF

Power Supply cablesPIN No.38 - 42(+B),43 - 45(GND)

1.5 A

 

Table 1 Cable parameters

6.2.Signal summary

The physical interface consists of single ended TTL compatible receivers and drivers communicating through a 50P-conductor as shown in Figure 9,10 - 13.

13/27

XM-7002B Rev.1.0

Page 17
Image 17
Toshiba XM-7002B specifications 13/27, Interface