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Host Interface
4-36 C156-E205-01EN
Table 4.33 Transfer setting values in the SC register
Transfer mode Bits 7 to 3 bits 2 to 0
PIO default transfer mode 00000 000
PIO default transfer mode (without IORDY signal) 00000 001
PIO flow control transfer mode (with IORDY signal) 00001 Mode
Undefined 00010
"
Multiword DMA transfer mode 00100 Mode
Ultra DMA transfer mode 01000 Mode
Undefined 10000
"
Mode indicates the number of transfer modes.
When the FR register is 95h, the ODD responds with the following value at the
end of the command.
Table 4.34 Cylinder Low register
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Version (00h)
Table 4.35 Cylinder High register
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
00000PEJ (1)LOCK (1)PENA
PENA: Set to 1 when the media status notification function is enabled.