Beck IPC@CHIP - SC12 - Link-LED; Reset; 256 X 8 Bit I;O-Extension Using 74 HCT573;245

IPC@CHIP - SC12
Hardware Manual v1.1 [05.11.2002]
©BECK IPC GmbH page 25 of 28
10.2 Link-LED / Reset
SC12
+
-
Vcc
3,5..4
V
GND
17
GND
GND
GND
1K
RESET =
1..5mA
(static)
<
0,8
V
Vcc
GND
10.3 256x 8bit I/O-Extension using 74HCT573/245
A0
/PCS1
A6
/PCS1
/WR
U4
sc12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
7
1
8
1
9
2
0
2
1
22
31
30
29
28
27
2
6
2
5
24
23
RXD0 PIO7
TXD0 PIO8
CTS0 PIO9 ENRX0
RTS0 PIO10 RTR0
TXD1 PIO11
RXD1 PIO12 INT3
PIO13 INT0 TMROUT0
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
GND
/RESET NMI LinkLED
TPTX+
TPTX-
TPRX+
TPRX-
/RD
VCC
PIO0 INT6 DRQ1
PIO1 INT5 DRQ0
A2 PIO2 /PCS6
A1 PIO3 TMRIN1 TMROUT1 /PCS5
A0 PIO4 TMRIN0 /PCS1
RTS1 PIO5 INT4 /PCS3
CTS1 PIO6 INT2 /PCS2
ALE
/WR
GND
D6
D3
D7
D2
A7
A3
A4
D5
A1
/RD
A5
U3 74HC573
1
11
19
18
17
16
15
14
13
12
2
3
4
5
6
7
8
9
OE
LE
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
1D
2D
3D
4D
5D
6D
7D
8D
A2
/RD
U1
74HC245
2
3
4
5
6
7
8
9
19
1
18
17
16
15
14
13
12
11
A1
A2
A3
A4
A5
A6
A7
A8
G
DIR
B1
B2
B3
B4
B5
B6
B7
B8
D4
D1
D0