Word
Value
51
0200h
52
0000h
53
0003h
54-62
0000h
63
0407h
(Default value)
64
0003h
65
0078h (120)
66
0078h (120)
67
017Fh (383)
68
0078h
4 - 24
Table 4.20 Device parameter information (2/5)
Bits
15-8
PIO data transfer cycle timing mode
7-0
Reserved
15-0
Reserved
15-3
Reserved
2
88 word information is valid.
(In the case of models which do not support Ultra-DMA transfers,
B'0'.)
1
Information in words 64 to 70 is valid. (B'1')
0
Information in words 54 to 58 is valid. (B'1')
Reserved
Multiword DMA transfer mode
Active mode
15-11
Reserved (B'0')
10
1 is shown when Mode 2 is selected.
9
1 is shown when Mode 1 is selected.
8
1 is shown when Mode 0 is selected.
Multiword DMA transfer mode supported
7-3
Reserved (B'0')
2
Mode 2 (B'1')
1
Mode 1 (B'1')
0
Mode 0 (B'1')
Flow control PIO transfer mode
15-8
Reserved
PIO transfer mode supported
7-2
Reserved (B'0)
1
Mode 4 (B'1')
0
Mode 3 (B'1')
Minimum multiword DMA transfer time per word (ns)
Recommended multiword DMA transfer time (ns)
Minimum PIO transfer cycle time when flow control is disabled (ns)
Minimum PIO transfer cycle time when flow control using IORDY
is enabled (ns)
C156-E142-02EN
Description