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參數(shù)資料
| 型號： | KBD42W11 |
| 廠商： | SMSC Corporation |
| 英文描述： | Keyboard controller is programmed to support |
| 中文描述： | 鍵盤控制器編程，以支持 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 99K |
| 代理商： | KBD42W11 |
4
PIN DESCRIPTION
PIN NO.
(40 Pin DIP)
1
2
3
4
5
6
7
8
9
10
11,26
12,13,14,
15,16,17,
18, 19
20
21
PIN NO.
(44 Pin PLCC)
2
3
4
5
6
7
8
9
10
11
1,12,13,23,29, 34
14,15,16,17,18,
19,20,21
I/O
I
I
O
I
-
I
-
I
I
I
-
I/O
NAME
T0
XIN
XOUT
nRESET
VDD
nCS
VSS
nRD
A2
nWR
NC
D0-D7
FUNCTION
K/B Clock Input
Crystal Clock I/P
Crystal Clock O/P
Chip Reset
Optional +5V Power Supply
Chip Select
Optional Ground Power
I/O Read
Connect to Address A2
I/O Write
Reserved
Data Bus D0 - D7
22
24
-
VSS
P20
Ground Power Supply
Bit 0 of Port 2 (RCB: System
Reset)
Bit 1 of Port 2 (GA20: GATE A20)
Bit 2 of Port 2
Bit 3 of Port 2
Optional +5V Power Supply
Bit 0 of Port 1
Bit 1 of Port 1
Bit 2 of Port 1
Bit 3 of Port 1
Bit 4 of Port 1 (RAM Jumper
Select)
Bit 5 of Port 1 (JUMP)
Bit 6 of Port 1 (Display Select)
Bit 7 of Port 1 (K/B Inhibit Switch)
Bit 4 of Port 2 (OBF O/P Interrupt)
Bit 5 of Port 2 (I/P Buffer Empty)
Bit 6 of Port 2 (K/B Clock O/P)
Bit 7 of Port 2 (K/B Data O/P)
K/B Data Input
+5V Power Supply
O
22
23
24
25
27
28
29
30
31
25
26
27
28
30
31
32
33
35
O
I/O
I/O
-
I/O
I/O
I/O
I/O
I
P21
P22
P23
VDD
P10
P11
P12
P13
P14
32
33
34
35
36
37
38
39
40
36
37
38
39
40
41
42
43
44
I
I
I
P15
P16
P17
P24
P25
P26
P27
T1
VDD
O
O
O
O
I
-
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|---|---|
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|---|---|
| KBD-6304 | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:Keyboards |
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