EZ80L925048MOD Datasheet, PDF (37/38 Pages) Zilog, Inc. – eZ80L92 Module is a compact, high-performance Ethernet module

eZ80L925048MOD
eZ80L92 Module Product Specification
31
D[0..7]
A[0..23]
PD[0..7]
-RESET
-WAIT
-DIS_FL
-DIS_IRDA
-RD
-WR
-CS[0..3]
D[0..7]
A[0..23]
only A0,A1,A2,A3
are used here
D[0..7]
A[0..23]
PD[0..7]
PD3 and PD5
not used here
-RESET
-WAIT
-DIS_FL
-DIS_IRDA
-RD
-WR
-RD
-CS3 = -CSETH
-WR
-CS[0..3] -CS1 and-CS2
not used
here
=
A0 = SA0
A1 = SA1
A2 = SA2
A3 = SA3
VDD
SD[0..7]
SA[0..3]
U6D
12
13
11
-ETHRD
74LCX32
TSSOP14
U6A
1
3
2
74LCX32
TSSOP14
-ETHWR
VDD
-DIS_FL
-DIS_IRDA
R30
10k
0603
3
R17
10k
0603
5
U2B
4
DIS_FL
74LVC04/SO
-CS0
U2C
U6B
4
6
5
74LCX32
TSSOP14
6
DIS_IRDA
U6C
9
8
PD2 = IR_SD ₁₀
74LVC04/SO
74LCX32
TSSOP14
-CSFLASH
IRDA_SD
V3.3
SD[0..7]
SA[0..3]
-ETHRD
-ETHWR
PD4
=
ETHIRQ
PD7
R14
0R
PD6
R15
0R
don’t stuff
-SLEEP
-ACTIVE
-WAIT
R35 0
PD0 =
PD1 =
IRDA_TXD
IRDA_RXD
IRDA_SD
-RESET = -RESFLASH
-CSFLASH
VDD
VSS
GND
Figure 17. eZ80L92 Module Schematic Diagram, #9 of 9—Control Logic
SD[0..7]
SA[0..3]
-ETHRD
-ETHWR
ETHIRQ
-SLEEP
-ACTIVE
IOCHRDY
IRDA_TXD
IRDA_RXD
IRDA_SD
-RESFLASH
-CSFLASH
PS017005-0903
PRELIMINARY
Schematic Diagrams