EZ80F910100KIT Zilog, EZ80F910100KIT Datasheet - Page 32

• Manufacturer Part Number: EZ80F910100KIT
• Description: KIT DEV FOR EZ80F91 W/C-COMPILER
• Manufacturer: Zilog
• Series: eZ80 Acclaim!®r
• Type: MCUr

Specifications of EZ80F910100KIT

• Contents: Dev. Board, Ethernet Module, Cable, Power Supply and Software
• For Use With/related Products: eZ80F91
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3388

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eZ80F91 Mini Enet Module
Functional Description
eZ80F91 Mini Enet Module
eZ80F91 Modular Development Kit
User Manual
Fast Buffer
This section describes the eZ80F91 Mini Enet Module hardware, its inter-
faces and key components, including the CPU, real-time clock, and mem-
ory.
The eZ80F91 Mini Enet Module is a compact, high-performance module
specially designed for the rapid development and deployment of embed-
ded systems.
Despite its small footprint, the eZ80F91 Mini Enet Module provides a
CPU, Flash memory, Ethernet interface, SRAM, and a real-time clock.
This module is powered by the eZ80F91 microcontroller, a member of
ZILOG’s eZ80Acclaim!™ product family.
A Fast Buffer is located on the data bus to Flash memory. The purpose of
this Fast Buffer is to avoid bus contention that can exist due to the slow
turn-off time of Flash memory and the fast bus turn-around time of the
eZ80F91 device (a generic feature of the eZ80Acclaim!™ family when is
used in native mode). The discussion that follows references Figure 7.
Bus contention can occur when two or more devices drive a common bus.
CS0 on the eZ80F91 device drives the Flash CE. Upon accessing Flash
memory, CS0 is driven High a maximum of 8.8 ns after the next rising
edge of the CPU Clock (T6—please refer to the External Memory Read
Timing diagram in the eZ80F91 Product Specification (PS0192) for assis-
tance). The Flash turn-off time (T
CE going High to Flash output drivers in a high-impedance state. For fur-
ther information, see the MT28F008 data sheet on www.micron.com.
PRELIMINARY
OD
) is 25 ns—the duration from OE or
UM017001-0404