FDC37B77X SMSC Corporation, FDC37B77X Datasheet - Page 7

• Manufacturer Part Number: FDC37B77X
• Description: ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES
• Manufacturer: SMSC Corporation

No./QFP
PIN
100
16
11
10
12
17
15
14
13
84
85
87
88
89
86
91
90
95
96
98
99
8
9
5
3
1
2
Read Disk Data
Write Gate
Write Disk Data
Head Select
Step Direction
Step Pulse
Disk Change
Drive Select 0
Motor On 0
Write Protected
Track 0
Index Pulse Input
Drive Density Select 0
Drive Density Select 1
Receive Serial Data 1
Transmit Serial Data 1
Request to Send 1
Clear to Send 1
Data Terminal Ready 1
Data Set Ready 1
Data Carrier Detect 1
Ring Indicator 1
Receive Serial Data 2/Infrared Rx
Transmit Serial Data 2/Infrared Tx (Note 4,
Note 7)
Request to Send 2/Sys Addr 12 (Note 6)
Clear to Send 2/Sys Addr 13
Data Terminal Ready/Sys Addr 14 (Note 6)
NAME
DESCRIPTION OF PIN FUNCTIONS
SERIAL PORT 1 INTERFACE (8)
SERIAL PORT 2 INTERFACE (8)
FDD INTERFACE (14)
7
TOTAL
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
nRDATA
nWGATE
nWDATA
nHDSEL
nDIR
nSTEP
nDSKCHG
nDS0
nMTR0
nWRTPRT
nTRKO
nINDEX
DRVDEN0
DRVDEN1
RXD1
TXD1
nRTS1/
SYSOP
nCTS1
nDTR1
nDSR1
nDCD1
nRI1
RXD2/IRRX
TXD2/IRTX
nRTS2/SA12
nCTS2/SA13
nDTR2/
SA14
SYMBOL
O24/OD24
O24/OD24
O24/OD24
O24/OD24
O24/OD24
O24/OD24
O24/OD24
O24/OD24
O24/OD24
BUFFER
O24PD
TYPE
O4/I
O4/I
O4/I
O4
O4
IS
IS
IS
IS
IS
I/I
I
I
I
I
I
I