FDC37C932APM View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37C932APM

Plug and Play Compatible Ultra I/O™ Controller with Soft Power Management

SMSC -> Microchip 

nDIR

nSTEP

nDS0-3

nINDEX

nRDATA

nWDATA

nIOW

nDS0-1,

MTR0-1

t3

t4

t1

t2

t5

t6

t7

t8

t9

t9

FIGURE 26 - DISK DRIVE TIMING (AT MODE ONLY)

NAME

DESCRIPTION

MIN

t1 nDIR Set Up to STEP Low

t2 nSTEP Active Time Low

t3 nDIR Hold Time after nSTEP

t4 nSTEP Cycle Time

t5 nDS0-1 Hold Time from nSTEP Low

t6 nINDEX Pulse Width

t7 nRDATA Active Time Low

t8 nWDATA Write Data Width Low

t9 nDS0-1, MTRO-1 from End of nIOW

*X specifies one MCLK period and Y specifies one WCLK period.

MCLK = 16 x Data Rate (at 500 kbps MCLK = 8 MHz)

WCLK = 2 x Data Rate (at 500 kbps WCLK = 1 MHz)

TYP

4

24

96

132

20

2

40

.5

25

MAX

UNITS

X*

X*

X*

X*

X*

X*

ns

Y*

ns

258

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