Zilog EZ80190 - Manual (Page 70)

UM014108-0810 Schematic Diagrams
eZ80190 Development Kit
User Manual
66
eZ80190 Module
Figures 21 through 28 present the schematics of the eZ80190 Module.
Figure 21. eZ80190 Module Schematic Diagram, #1 of 8—CPU
-CS0 --> FLASH
-CS1 --> RAM
-CS2 --> ext. IO
-CS3 --> ETH
=
don’t
stuff
place caps close
to pins 97, 8, 38, 48
don’t
stuff
PA[0..7]
D[0..7]
PC[0..7]
PB[0..7]
A[0..23]
D[0..7]
A[0..23]
PB[0..7]
D0 D1 D2 D3 D4 D5 D6 D7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14 A15 A16 A17 A18
PA
0
PA
1
PA
2
PA
3
PA
4
PA
5
PA
6
PA
7
PD0 PD1 PD2 PD3
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PB5
PB4
PB3
PB2
PB1
PB0
-CS0
-CS1
-CS2
-CS3
ZDA
ZCL
-BUSREQ
-RESET
PD6 PD7 PD4
PB7
PB6
-WR
-RD
-WR
-RD
ZDA
ZCL
-RESET
-SLEEP
-ACTIVE
CLK_OUT
CLK_OUT
A19 A20 A21 A22 A23
-CS[0..3]
-NMI
-IOREQ
-INSTRD
-HALT
-IOREQ
-INSTRD
-HALT
-MREQ
-BUSACK PD5
XIN
PD[0..7]
PC[0..7]
PD[0..7]
-NMI
IICSDA
IICSCL
-BUSREQ
-BUSACK
-MREQ
PD7
PD6
PD4 ETHIRQ
PA7
PA6
PC1 PC0
PA[0..7]
D[0..7]
A[0..23]
-WR
-RD
ZDA
ZCL
-CS[0..3]
-RESET
-IOREQ
-INSTRD
-HALT
PB[0..7]
PC[0..7]
PD[0..7]
-NMI
ETHIRQ
-ACTIVE
-SLEEP
-BUSACK
-BUSREQ
-MREQ
CLK_OUT
IICSDA
IICSCL
PA[0..7]
C18
1nF
0603 C19
1nF
0603 C20
1nF
0603
U1
eZ80190
TQFP100
83
74
82
40
81
73
80
26
84 85 86 87 88 96 79 95
72
94 78 93
75
97 98 99 100 92 77 91
4
90 76 89
71 5
70
41 27
69
42
68
6
67
1
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
30 43
7
44 31
2
32 45 33
3
28 34 29 46 35
8
36 47 37
9
10
38
11
39
12
13
14
48 49
15
50
16
17
18
19
20
21
22
23
24
25
PD7/RI0
PC7/RI1
PD6/DCD0
D0
PD5/DSR0
PC6/DCD1
PD4/DTR0
A14
VDD VSS
XT
AL
EXT
AL
BUSACK
PA
7
PD3/SS0/CTS0
PA
6
PC5/DSR1
PA
5
PD2/SCK0/R
TS0 PA
4
TEST
VDD VSS
BUSREQ
PHI PA
3
PD1/SDA0/MOSI0/RxD0
PA
2
CS0
PA
1
PD0/SCL0/MISO0/TxD0
PA
0
PC4/DTR1 CS1
PC3/SS1/CTS1
D1 A15
PC2/SCK1/RTS1
D2
PC1/SDA1/MOSI1/RxD1
CS2
PC0/SCL1/MISO1/TxD1
MREQ
HALT
INSTRD
IORQ
RESET
ZCL
ZDA
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
VDD
VSS
A16 D3
CS3
D4 A17
WR
A18 D5 A19
RD
VDD A20 VSS D6 A21
VDD
A22 D7 A23
VSS
A0
VDD
A1
VSS
A2
A3
A4
VDD VSS
A5
NMI
A6
A7
VDD
VSS
A8
A9
A10
A11
A12
A13
R4
1k
0603
R32 0R
0603
R33 0R
0603
R31
0R
0603
R30
0R
0603
R14 0R
0603
X1
50.000MHz, 3.3V
SG-710
1 3
OE OUT
R13
4k7
0603
R15 0R
0603