EZ80L920210ZCO Zilog, EZ80L920210ZCO Datasheet - Page 87

• Manufacturer Part Number: EZ80L920210ZCO
• Description: KIT DEV EZ80 WEB SERVER
• Manufacturer: Zilog
• Series: eZ80®r

Specifications of EZ80L920210ZCO

• Main Purpose: *
• Embedded: *
• Utilized Ic / Part: eZ80L92
• Primary Attributes: *
• Secondary Attributes: *
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3165; EZ80L920210ZCO; Q1370684

Appendix A
General Array Logic Equations
//`define
//`define
//`define
//`define
// FOR eZ80
// This PAL generates 4 memory chip selects
module l92_decod(
UM012906-0103
nCS_EX,
nFL_DIS,
nCS0,
A7,
A6,
A5,
A4,
A3,
A2,
A1,
A0,
nCS2,
nEX_FL_DIS, //disables Flash on the expansion module, when Low
nEM_EN,
nDIS_FL,
nL_RD,
nmemen1,
U10 Address Decoder
®
This appendix shows the equations for disabling the Ethernet signals pro-
vided by the U10 and U15 General Array Logic (GAL) devices.
Development Platform Rev B
idle
state1
state2
state3
//Enables Extension Module's Memory when Low
//when Low WEB Module Flash is disabled (nDIS_FL=0),
//when High nDIS_FL depends upon state of nmemenX
//A23
//A22
//A21
//A20
//A19
//A18
//A17
//A16
//enables Development Platform LED and
//the general-purpose port.
//disables E-NET Module Flash when Low
//enables local data bus to be read by CPU
2'b00
2'b01
2'b11
2'b10
PRELIMINARY
eZ80L92 Development Kit
General Array Logic Equations
User Manual
77