LPC47M182 datasheet(41/223 Pages) SMSC

41 / 223 page

Advanced I/O Controller with Motherboard GLUE Logic

Datasheet

SMSC LPC47M182

Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05)

DATASHEET

DRIVE

SEL0

WDATA

TOGGLE

RDATA

TOGGLE

WGATE

MOT

EN1

MOT

EN0

RESET

COND.

BIT 0 MOTOR ENABLE 0

Active high status of the MTR0 disk interface output pin. This bit is low after a hardware reset and

unaffected by a software reset.

BIT 1 MOTOR ENABLE 1

Active high status of the MTR1 disk interface output pin. This bit is low after a hardware reset and

unaffected by a software reset.

BIT 2 WRITE GATE

Active high status of the WGATE disk interface output.

BIT 3 READ DATA TOGGLE

Every inactive edge of the RDATA input causes this bit to change state.

BIT 4 WRITE DATA TOGGLE

Every inactive edge of the WDATA input causes this bit to change state.

BIT 5 DRIVE SELECT 0

Reflects the status of the Drive Select 0 bit of the DOR (address 3F2 bit 0). This bit is cleared after a

hardware reset and it is unaffected by a software reset.

BIT 6 RESERVED

Always read as a logic “1”.

BIT 7 RESERVED

Always read as a logic “1”

PS/2 Model 30 Mode

BIT 0 nDRIVE SELECT 2

The DS2 disk interface is not supported.

nDRV2

nDS1

nDS0

WDATA

F/F

RDATA

F/F

WGATE

F/F

nDS3

nDS2

RESET

COND.

N/A

LPC47M182 Datasheet(PDF) 41 Page - SMSC Corporation

LPC47M182 Datasheet(HTML) 41 Page - SMSC Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL