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83977 Schematic ( PDF Datasheet ) - Winbond

Teilenummer 83977
Beschreibung W83977
Hersteller Winbond
Logo Winbond Logo 




Gesamt 30 Seiten
83977 Datasheet, Funktion
www.DataSheet4U.com
W83977ATF
WINBOND I/O






83977 Datasheet, Funktion
PIN CONFIGURATION
W83977ATF
PRELIMINARY
www.DataSheet4U.com
IRQ14/GP14
IRQ15/GP15
IOR
IOW
AEN
IOCHRDY
D0
D1
D2
D3
D4
D5
VCC
D6
D7
MR
DACK0/GP16
VSS
SCI/DRQ0/GP17
DACK1
DRQ1
DACK2
DRQ2
DACK3
DRQ3
TC
/
/P
PA
AN
II
RR
QQ
11
21
I
RI I I I
QRR R R
1 QQQQ
013 4 5
I II I
R
Q
R
Q
R
Q
QRA1
6 7 8 95
V
S
S
AA
11
43
A
1
2
A
1
1
V
C
A
1
C0
A
9
A
8
AA
76
AA
54
A
3
AA
21
N
S
S
W
WO
IU
N, T,
/
S
M
I,
A
0
G
P
2
3
G
P
2
2
V
S
B
G
P
2
1
G
P
2
0
M
C
L
K
K
C
L
K
/
R
I
B
/
R
I
A
11 199 9 9 999 99 9 88 888 8 88 8 877 777 777 7 76666 6
00 098 7 6 543 21 0 98 765 4 32 1 098 765 432 1 09876 5
21 0
103 64
104 63
105 62
106 61
107 60
108 59
109 58
110 57
111 56
112 55
113 54
114 53
115 52
116 51
117 50
118 49
119 48
120 47
121 46
122 45
123 44
124 43
125 42
126 41
127 40
128 39
1
2
3
4
5
67
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
33
12
3
3
3
4
33
56
3
7
3
8
VBAT
XTAL1
VSS
XTAL2
MDATA
KDATA
KBLOCK/GP13
KBRST/GP12
GA20/GP11
VCC
DCDB
SOUTB/PEN48
SINB
DTRB
RTSB
DSRB
CTSB
DCDA
SOUTA/PENKBC
SINA
DTRA/PNPCSV
RTSA/HEFRAS
DSRA
CTSA
CIRRX/GP24
IRRXH/IRSL0
C
L
K
IN
D
R
V
D
E
N
0
D
R
V
D
E
N
1,
/
D
S
K
C
H
G
/
H
E
A
D
// /
RW T
D
A
T
A
P
R
A
K
0
// /
WW S
ED T
E
P
/
D
I
R
/
M
/
D
/
D
O
B
S
A
S
B
/ /S
MI L
O NC
A
D
E
T
X
P
E
V
C
C
B
U
S
Y
/
A
C
K
PP V
DD S
76 S
PP
DD
54
PPP
DDD
321
P/
DS
0L
I
N
/
I
N
TI
// /
EAS
RF T
RD B
I
R
R
X
I
R
TX
G
P
1
0,
/
S
C
I
Publication Release Date: April 1998
-5 - Revision 0.52

6 Page









83977 pdf, datenblatt
W83977ATF
PRELIMINARY
1.4 Infrared Interface
SYMBOL
IRRX
IRTX
PIN I/O
FUNCTION
37 INcs Infrared Receiver input.
38 OUT12t Infrared Transmitter Output.
1.5 Multi-Mode Parallel Port
The following pins have alternate functions, which are controlled by CR28 and L3-CRF0.
www.DataSheet4U.com SYMBOL
PIN
I/O
FUNCTION
SLCT
18 INt PRINTER MODE: SLCT
An active high input on this pin indicates that the printer is
selected. This pin is pulled high internally. Refer to the
description of the parallel port for definition of this pin in ECP
and EPP mode.
OD12
EXTENSION FDD MODE: WE2
This pin is for Extension FDD B; its function is the same as the
WE pin of FDC.
OD12
EXTENSION 2FDD MODE: WE2
This pin is for Extension FDD A and B; its function is the same
as the WE pin of FDC.
PE 19 INt PRINTER MODE: PE
An active high input on this pin indicates that the printer has
detected the end of the paper. This pin is pulled high internally.
Refer to the description of the parallel port for the definition of
this pin in ECP and EPP mode.
OD12
EXTENSION FDD MODE: WD2
This pin is for Extension FDD B; its function is the same as the
WD pin of FDC.
OD12
EXTENSION 2FDD MODE: WD2
This pin is for Extension FDD A and B; its function is the same
as the WD pin of FDC.
Publication Release Date: April 1998
-11 - Revision 0.52

12 Page





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