Cs8130 – Cirrus Logic CS8130 User Manual
Page 23
VA+
VD+
AGND
PINC
PINA
LED1C
LED2C
RESET
TGND1 TGND2 DGND
EXTCLK
XTALIN
XTALOUT
RXD
FORM/BSY
TXD
D/C
PWRDN
CLKFR
8
12
5
7
6
1
4
19
17
18
13
16
14
15
10
9
2
3
20
0.1
µ
F
+
10
µ
F
+3V
0.1
µ
F
+
10
µ
F
+
47
µ
F
+3V
10
Ω
5.2
Ω (2)
5.2
Ω (2)
3.6864 MHz
CS8130
BPV23NF
TSHA5502
CIA-
CIA+
MAX562
VCC
CIB-
CIB+
T1OUT
T2OUT
R1IN
R2IN
V-
V+
GND
27
28
26
3
4
1
5
2
0.33
µ
F
+3V
0.33
µ
F
0.33
µ
F
C2+
C2-
24
25
0.33
µ
F
0.68
µ
F
0.33
µ
F
5
20
21
22
23
DTR
DB9
Serial
Connector
(COM PORT)
R1OUT
R2OUT
R3OUT
R5OUT
R4OUT
EN
SHDN
15
14
R3IN
R4IN
R5IN
T3OUT
T2IN
T1IN
T3IN
16
17
18
19
9
8
7
6
13
12
11
10
RTS
TXD
RXD
DCD
RI
DSR
CTS
6
8
2
1
9
4
7
3
DTR
RTS
TXD
RXD
DCD
RI
DSR
CTS
SG
UART
RS-232/IR
SELECT
11
Notes:
(1) This circuit has not yet been
built and debugged.
(2) Choice of LED, power consumption
and physical positioning will affect R value.
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
CS8130
DS134PP2
23
CS8130
DS134F1
23