37M602 Datasheet, PDF (22/182 Pages) SMSC Corporation – ENHANCED SUPER I/O CONTROLLER WITH INFRARED SUPPORT

DRIVE RATE
DRT1 DRT0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
Table 11 - Data Rates
DATA RATE
DATA RATE
SEL1 SEL0 MFM FM
1
1
1Meg
---
0
0
500
250
0
1
300
150
1
0
250
125
1
1
1Meg
---
0
0
500
250
0
1
500
250
1
0
250
125
1
1
1Meg
---
0
0
500
250
0
1
2Meg
---
1
0
250
125
DENSEL
1
1
0
0
1
1
0
0
1
1
0
0
DRATE(1)
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
Drive Rate Table (Recommended) 00 = 360K, 1.2M, 720K, 1.44M and 2.88M Vertical Format
01 = 3-Mode Drive
10 = 2 Meg Tape
Note 1: The DRATE and DENSEL values are mapped onto the DRVDEN pins.
DT1 DT0
0
0
1
0
0
1
1
1
Table 12 - DRVDEN Mapping
DRVDEN1 (1)
DRVDEN0 (1)
DRATE0
DENSEL
DRATE0
DRATE0
DRATE1
DRATE1
nDENSEL
DRATE0
DRIVE TYPE
4/2/1 MB 3.5"
2/1 MB 5.25" FDDS
2/1.6/1 MB 3.5" (3-
MODE)
PS/2
22