Zilog EZ80L92 - Manual (Page 68)

UM012913-0407 Schematic Diagrams
eZ80L92 Development Kit
User Manual
64
Figure 20. eZ80Acclaim!
®
Development Platform Schematic Diagram, #4 of 5
5 4 3 2 1
D
C
B
A
RESET
3.3 OK
MODEM
CONSOLE
POWER & RS232
96C0858-001 C
Schematic, eZ80L92 Evaluation Board
B
4 4 Friday, October 10, 2003
Title
Size Document Number Rev
Date: Sheet of
VDD
RXD1
GND
CTS1 RTS1
RTS1
TXD1
RXD0
CTS0
VCC
3.3V
VDD
RI1_B
5V
RI1_NB
CTS1
DTR1
TXD0
VDD
RXD1
RI1
RXD0
DCD1
TXD1
DSR1
CTS0
DCD1
DTR1
VDD
RTS0
RI1_NB
RI1_B
RTS0
TXD0
DSR1 RI1
9VDC
GND
GND
GND
VCC
GND
VCC
PC0_TXD1
PC1_RXD1
PD1_RXD0
PD0_TXD0
PD2_RTS0
PC2_RTS1
PC0_TXD1
-MOD_DIS
PD1_RXD0
-RESET
PC2_RTS1
VCC
PC3_CTS1
PD2_RTS0
PD0_TXD0
PD3_CTS0
VDD
PC7_RI1
PC6_DCD1
PC4_DTR1
PC1_RXD1
-CON_DIS
PC5_DSR1
9VDC
GND
-DIS_0
-DIS_1
VDD
C17
0.1uF
U27
DS1487
1
2
3
4 5
6
7
8 RO
RE
DE
DI GND
A
B
VCC
C14
0.1
C32
0.1uF
C25
0.1
C21
0.1
C13
0.1uF
D7
GREEN
2
1
R18
10K
J14
Header 3
1
2
3
SW4
R16
10K
P3
DB9 Male
5
9
4
8
3
7
2
6
1
U25
LT1086-3.3/TO220
1
3 2
GND
VIN VOUT
R23
120
C20
0.1
U24
MAX3245CAI
28
24
1
2
14
13
12
22
23
20
19
18
17
16
15
25
8
7
6
5
4
21
11
10
9
3
27
26
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
FORCEOFF
FORCEON
R2OUTB
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
GND
R5IN
R4IN
R3IN
R2IN
R1IN
INVALID
T3OUT
T2OUT
T1OUT
V-
V+
VC
C
R14
10K
J15
RS485_1_EN
1
2
J17
RT_1
1
2
C26
0.1
R15
680
R22
120
+ C23
22uF
P4
con8
1
2
3
4
5
6
7
8
C15
0.1
U26
DS1487
1
2
3
4 5
6
7
8 RO
RE
DE
DI GND
A
B
VCC
J13
PWR JACK
2
3
1
J16
RS485_2_EN
1
2
J18
RT_2
1
2
+ C28
22/6.3
C22
0.1
+ C19
22/10
C29
0.1
P2
DB9 Female
5
9
4
8
3
7
2
6
1
F1
RXE160
U22
MAX3245CAI
28
24
1
2
14
13
12
22
23
20
19
18
17
16
15
25
8
7
6
5
4
21
11
10
9
3
27
26
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
FORCEOFF
FORCEON
R2OUTB
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
GND
R5IN
R4IN
R3IN
R2IN
R1IN
INVALID
T3OUT
T2OUT
T1OUT
V-
V+
VC
C
U23
LM7805C/TO220/0.5A
1 3
2
IN OUT
GND
C18
0.1uF
D6
S26
J10
HEADER 5
1 2 3 4 5
C16
0.1uF
R17
10K
C27
0.1
C24
0.1