CS8130
CS8130
+
10 µF
10 Ω
0.1 µF
0.1 µF
+3V
+
10 µF
BPV23NF
8
VA+
5
AGND
7
PINC
12
VD+
19
EXTCLK
17
XTALIN
XTALOUT 18
TSHA5502
6 PINA
+3V
+
47 µF
5.2 Ω (2) 1 LED1C
5.2 Ω (2) 4 LED2C
RESET 11
CS8130 RXD 13
FORM/BSY 16
14
TXD
15
D/C
PWRDN 10
CLKFR 9
TGND1 TGND2 DGND
2
3
20
3.6864 MHz
Notes:
(1) This circuit has not yet been
built and debugged.
(2) Choice of LED, power consumption
and physical positioning will affect R value.
0.33 µF
0.33 µF
5 CIA-
2 CIA+
4 CIB-
3 CIB+
+3V
0.33 µF
1
VCC
14
EN
SHDN 15
MAX562
C2+ 25
C2- 24
0.33 µF
6
8
2
DB9
Serial
1
Connector 9
(COM PORT)
4
7
3
5
DSR
CTS
RXD
DCD
RI
DTR
RTS
TXD
SG
23 R1IN
22 R2IN
21 R3IN
20 R4IN
19 R5IN
18 T1OUT
17 T2OUT
16 T3OUT
R1OUT 6
R2OUT 7
R3OUT 8
R4OUT 9
R5OUT 10
T1IN 11
T2IN 12
T3IN 13
GND
27
V- 26
V+ 28
0.68 µF
0.33 µF
RS-232/IR
SELECT
UART
DSR
CTS
RXD
DCD
RI
DTR
RTS
TXD
UART to both RS232 and IR Port Interface
Motherboard Example Schematic
Steven Harris
Crystal Semiconductor
5/26/94
Figure 8. IR and RS232 from 1 UART
DS134PFP1 2
2233