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

V3.3
D
S
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
vice addresses:
300h bis 0030Fh
-ETHRD
RD
-ETHRD
-ETHWR -ETHWR
WR
RDY
R34
10k
0603
SD[0..7]
.7]
SA[0..3]
.3]
ETHIRQ
RQ
-SLEEP
EEP
-ACTIVE = -LANLED
IVE
904-0203
Downloaded from Elcodis.com electronic components distributor
R19
10k
LANLED
LINKLED/HC0
XTAL2
XTAL1
AVSS
AVDD
AVSS
U7
RES
RXD-
RXD+
CS8900A-CQ3
AVDD
AVSS
TXD-
TXD+
TQFP100
AVSS
AVDD
DO-
DO+
BSTATUS/HC1
SLEEP
TEST
SD[0..7]
through hole
solder pad
V3.3
place
near
VDD
J1
L2
VSS
ferrite
tbd
GND
don't stuff
Figure 26. Schematic Diagram, #5 of 9—eZ80F92 Flash Module
PRELIMINARY
-LANLED
100
-LINKLED
99
98
Y1
97
20.000 MHz
96
HC49SM
95
94
R23
93
RXD-
92
4k99/1%
RXD+
91
90
89
TXD-
88
TXD+
87
86
85
84
83
82
CI-
81
CI+
80
DI-
79
DI+
78
-SLEEP
77
int. Pull-Up
76
8R2
TXD-
C12
R24
560pF
TXD+
8R2
R25
RXD-
C13
100nF
R26
100
RXD+
JP4
HEADER 1
SIP1
don't
stuff
CASE
eZ80F92 Development Kit
90 degree,
stacked
R20
dual-LED
220
green
LED gn 0603
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-
TD+
1
1
2
2
3
3
RD- CTD
4
4
CRD
5
5
6
6
8
8
RD+
C14
C15
100nF
TX+ <-> 1
100nF
TX- <-> 2
RX+ <-> 3
RX- <-> 6
Schematic Diagrams
User Manual
68
R21
220
0603
TD+
8
TD-
7
6
5
GND
J1
HFJ11-1041
HALOFASTJACK