4.4 SCSI Messages
C156-E224-01EN
4-45
Table 4.74 lists the values of Transfer Period and the corresponding synchronous
transfer rates.
Table 4.74 Transfer mode settings requested by INIT to ODD
Transfer Period requested
by INIT
Transfer Period
acknowledged by ODD
Transfer mode used
00h ~ 0Ch
0x0Ch
Synchronous transfer (20 MBps)
REQ period
≥
50 ns
ACK period
≥
INIT-specified value
0Dh ~ 12h
0x12h
Synchronous transfer (13.3 MBps)
REQ period
≥
75 ns
ACK period
≥
INIT-specified value
13h ~ 19h
0x19h
Synchronous transfer (10 MBps)
REQ period
≥
100 ns
ACK period
≥
INIT-specified value
1Ah ~ 25h
0x25h
Synchronous transfer (6.6 MBps)
REQ period
≥
150 ns
ACK period
≥
INIT-specified value
26h ~ 32h
0x32h
Synchronous transfer (5.0 MBps)
REQ period
≥
200 ns
ACK period
≥
INIT-specified value
33h ~ 3Fh
0x3Fh
Synchronous transfer (4.0 MBps)
REQ period
≥
250 ns
ACK period
≥
INIT-specified value
40h ~ 4Bh
0x4Bh
Synchronous transfer (3.3 MBps)
REQ period
≥
300 ns
ACK period
≥
INIT-specified value
4Ch ~ 7Dh
0x7Dh
Synchronous transfer (2.0 MBps)
REQ period
≥
500 ns
ACK period
≥
INIT-specified value
7Eh ~
INIT-specified value
REQ/ACK Offset = 0
Asynchronous transfer
Summary of Contents for MCJ3230SS
Page 1: ...C156 E224 01EN MCJ3230SS OPTICAL DISK DRIVE PRODUCT MANUAL ...
Page 4: ...This page is intentionally left blank ...
Page 19: ...C156 E224 01EN xv Figure 6 1 Revision label 6 4 Figure 6 2 Revision number indication 6 4 ...
Page 22: ...This page is intentionally left blank ...
Page 34: ...This page is intentionally left blank ...
Page 46: ...Specifications 2 12 C156 E224 01EN Figure 2 3 Example of alternate processing ...
Page 52: ...Installation Requirements 3 6 C156 E224 01EN Unit mm Figure 3 3 Dimensions without panel ...
Page 59: ...3 4 Cable Connections C156 E224 01EN 3 13 PC board Figure 3 11 Shape of setting terminal ...
Page 74: ...This page is intentionally left blank ...
Page 124: ...Host Interface 4 50 C156 E224 01EN Figure 4 5 ARBITRATION phase ...
Page 125: ...4 5 Timing Rule C156 E224 01EN 4 51 µ Figure 4 6 SELECTION phase Figure 4 7 RESELECTION phase ...
Page 126: ...Host Interface 4 52 C156 E224 01EN Figure 4 8 Transfer in asynchronous mode ...
Page 127: ...4 5 Timing Rule C156 E224 01EN 4 53 Figure 4 9 Transfer in FAST SCSI mode ...
Page 128: ...Host Interface 4 54 C156 E224 01EN Figure 4 10 ATTENTION condition ...
Page 150: ...This page is intentionally left blank ...
Page 158: ...This page is intentionally left blank ...
Page 160: ......
Page 161: ......