FDC37B78X SMSC Corporation, FDC37B78X Datasheet - Page 29
FDC37B78X
Manufacturer Part Number
FDC37B78X
Description
Enhanced Super I/O Controller with ACPI Support/ Real Time Clock and Consumer IR
Manufacturer
SMSC Corporation
Datasheet
1.FDC37B78X.pdf
(258 pages)
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An overrun or underrun will terminate the
current command and the transfer of data. Disk
writes will complete the current sector by
FIFO THRESHOLD
FIFO THRESHOLD
FIFO THRESHOLD
EXAMPLES
EXAMPLES
EXAMPLES
15 bytes
15 bytes
15 bytes
2 bytes
8 bytes
2 bytes
8 bytes
2 bytes
8 bytes
1 byte
1 byte
1 byte
TABLE 15 - FIFO SERVICE DELAY
1 x 4 s - 1.5 s = 2.5 s
2 x 4 s - 1.5 s = 6.5 s
8 x 4 s - 1.5 s = 30.5 s
15 x 4 s - 1.5 s = 58.5 s
1 x 8 s - 1.5 s = 6.5 s
2 x 8 s - 1.5 s = 14.5 s
8 x 8 s - 1.5 s = 62.5 s
15 x 8 s – 1.5 s = 118.5 s
1 x 16 s - 1.5 s = 14.5 s
2 x 16 s - 1.5 s = 30.5 s
8 x 16 s - 1.5 s = 126.5 s
15 x 16 s - 1.5 s = 238.5 s
MAXIMUM DELAY TO SERVICING
MAXIMUM DELAY TO SERVICING
MAXIMUM DELAY TO SERVICING
29
AT 500 Kbps DATA RATE
AT 2 Mbps DATA RATE
AT 1 Mbps DATA RATE
generating a 00 pattern and valid CRC. Reads
require the host to remove the remaining data
so that the result phase may be entered.
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