EZ80L925048MOD Datasheet, PDF (29/38 Pages) Zilog, Inc. – eZ80L92 Module is a compact, high-performance Ethernet module

Schematic Diagrams
Figures 9 through 17 diagram the layout of the eZ80L92 Module.
eZ80L925048MOD
eZ80L92 Module Product Specification
23
03 RAM
SRAM
D[0..7]
A[0..23]
-RD
-WR
-CS1
D[0..7]
A[0..23]
-RD
-WR
-CS1
04 ROM
NOR-Flash
D[0..7]
A[0..23]
-RD
-WR
-CSFLASH
-RESFLASH
-FLASHWE
D[0..7]
A[0..23]
-RD
-WR
-CSFLASH
-RESFLASH
-FLASHWE
09 Power
PowerSupply
V3.3
GND
V3.3
GND
PS017005-0903
02 CPU
eZ80
D[0..7]
A[0..23]
-RD
-WR
05 Ethernet
CS8900A
-RESET
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
-BUSREQ
-BUSACK
-NMI
CLK_OUT
RTC_VDD
IICSDA
IICSCL
PB[0..7]
PC[0..7]
PD[0..7]
-CS[0..3]
JTAG[1..4]
TDO
-RESET
07 Peripherals
Reset
-RESET
IRDA_TXD
IRDA_RXD
IRDA_SD
IRDA_TXD
IRDA_RXD
IRDA_SD
08
-RESET
-FLASHWE
-IOREQ
-MREQ
-INSTRD
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
-WAIT
-HALT_SLP
-BUSREQ
-BUSACK
-BUSREQ
-BUSACK
-NMI
-NMI
CLK_OUT
CLK_OUT
RTC_VDD
IICSDA
IICSCL
06 Logic
CTRL-Logic
-RESET
-WAIT
PB[0..7]
PC[0..7]
PD[0..7]
-CS[0..3]
JTAG[1..4]
TDO
-RESET
-WAIT
PD[0..7]
-CS[0..3]
IRDA_TXD
IRDA_RXD
IRDA_SD
-DIS_FL
-DIS_IRDA
-CSFLASH
-RESFLASH
RTC_VDD
IICSDA
IICSCL
D[0..7]
A[0..23]
IRDA_TXD
IRDA_RXD
-WR
IRDA_SD
-RD
-DIS_FL
-DIS_IRDA
-CSFLASH
-RESFLASH
PB[0..7]
PC[0..7]
PD[0..7]
-CS[0..3]
JTAG[1..4]
TDO
Connector
Headers
-RESET
-FLASHWE
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
-BUSREQ
-BUSACK
-NMI
CLK_OUT
RTC_VDD
IICSDA
IICSCL
D[0..7]
A[0..23]
-WR
-RD
-DIS_FL
-DIS_IRDA
PB[0..7]
PC[0..7]
PD[0..7]
-CS[0..3]
JTAG[1..4]
TDO
-DIS_ETH
SD[0..7]
SA[0..3]
IOCHRDY
-ETHRD
-ETHWR
ETHIRQ
-SLEEP
-ACTIVE
-DIS_ETH
SD[0..7]
SA[0..3]
IOCHRDY
-ETHRD
-ETHWR
ETHIRQ
-SLEEP
-ACTIVE
V3.3
GND
V3.3_EXT
GND_EXT
Figure 9. eZ80L92 Module Schematic Diagram, #1 of 9—Top Level
PRELIMINARY
Schematic Diagrams