Figure 26. Schematic Diagram, #5 Of 9-Ez80F92 Flash Module - ZiLOG eZ80F92 User Manual

V3.3
VDD
VSS
GND
26
SD9
27
SD8
28
R22
MEMW
29
4k7
MEMR
30
INTRQ2
31
INTRQ1
ETHIRQ
32
INTRQ0
33
IOCS16
34
MEMCS16
35
INTRQ3
36
SHBE
SA0
37
SA0
SA1
38
SA1
SA2
39
SA2
SA3
40
SA3
41
SA4
42
SA5
SA[0..3]
43
SA6
44
SA7
45
SA8
46
SA9
47
SA10
48
SA11
49
REFRESH
50
SA12
device addresses:
00300h bis 0030Fh
-ETHRD
-ETHRD
-ETHWR
-ETHWR
IOCHRDY
R34
10k
0603
SD[0..7]
SD[0..7]
SA[0..3]
SA[0..3]
ETHIRQ
ETHIRQ
-SLEEP
-SLEEP
=
-ACTIVE -LANLED
-ACTIVE
UM013904-0203
LINKLED/HC0
U7
CS8900A-CQ3
TQFP100
BSTATUS/HC1
-ETHRD
-ETHWR
SD[0..7]
V3.3
VDD
VSS
GND
Figure 26. Schematic Diagram, #5 of 9—eZ80F92 Flash Module
R19
10k
-LANLED
100
LANLED
-LINKLED
99
98
XTAL2
Y1
97
20.000 MHz
XTAL1
96
HC49SM
AVSS
95
AVDD
94
AVSS R23
93
RES
RXD-
92
4k99/1%
RXD-
RXD+
91
RXD+
90
AVDD
89
AVSS
TXD-
88
TXD-
TXD+
87
TXD+
86
AVSS
85
AVDD
84
DO-
83
DO+
82
CI-
81
CI+
80
DI-
79
DI+
78
-SLEEP
77
SLEEP
int. Pull-Up
76
TEST
8R2
TXD-
R24
TXD+
8R2
R25
RXD-
C13
100nF
R26
100
RXD+
JP4
through hole
HEADER 1
solder pad
SIP1
place don't
near
stuff
J1
L2
CASE
ferrite
tbd
don't stuff
PRELIMINARY
eZ80F92 Development Kit
90 degree,
stacked
dual-LED
green
LED gn
LD1
-LANLED
THT
LD2
-LINKLED
THT
yellow
LED ye
ESD protection array
U9
RD+
1
RD-
2
3
4
LCDA15C-6
SO8.150
GND
TD-
C12
560pF
TD+
RD- CTD
CRD
RD+
C14
C15
100nF
100nF
User Manual
68
R20 R21
220 220
0603 0603
TD+
8
TD-
7
6
5
GND
J1
1
1
2
2
3
3
4
4
5
5
6
6
8
8
HFJ11-1041
HALOFASTJACK
TX+ <-> 1
TX- <-> 2
RX+ <-> 3
RX- <-> 6
Schematic Diagrams