26

U10 Family Product Manual, Rev. A

 

 

 

Word

Description

Value

 

 

 

 

 

 

49

Standard Standby timer,

 

 

IORDY supported and may

2F00H

 

be disabled

 

 

 

 

50

Device-specific standby

0000H

 

timer value

 

 

 

 

51

PIO data-transfer cycle

 

 

timing mode

0200H

52

Retired

0200H

 

 

 

53

Words 54–58, 64–70 and 88

 

 

are valid

0007H

54

Number of current logical

xxxxH

 

cylinders

 

 

 

 

55

Number of current logical

xxxxH

 

heads

 

 

 

 

56

Number of current logical

 

 

sectors per logical track

xxxxH

57–58

Current capacity in sectors

xxxxH

 

 

 

59

Number of sectors trans-

xxxxH

 

ferred during a Read Multiple

 

or Write Multiple command

 

 

 

 

60–61

Total number of user-addres-

ST320423A = 40,011,300

 

sable LBA sectors available

ST315323A = 30,008,475

 

 

ST310212A = 20,005,650

 

 

 

62

Retired

0000H

 

 

 

63

Multiword DMA active and

xx07H

 

modes supported (see note

 

 

following this table)

 

 

 

 

64

Advanced PIO modes sup-

 

 

ported (modes 3 and 4 sup-

0003H

 

ported)

 

 

 

 

65

Minimum multiword DMA

 

 

transfer cycle time per word

0078H

 

(120 nsec)