EZ80F910200ZCO Zilog, EZ80F910200ZCO Datasheet - Page 48

• Manufacturer Part Number: EZ80F910200ZCO
• Description: KIT DEV FOR EZ80F91 W/C-COMPILER
• Manufacturer: Zilog

Specifications of EZ80F910200ZCO

• Processor To Be Evaluated: eZ80F91
• Interface Type: Ethernet
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3154; EZ80F910200ZCO

UM014220-0508
eZ80F91 Data Bus
Flash Data Bus
CPU Clock
CS0
CS1
WR
RD
Figure 11. Possible Bus Contention without Fast Buffer
eZ80F91 device (a generic feature of the eZ80
native mode). The discussion that follows references
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—refer to the External Memory Read Timing
diagram in the eZ80F91 MCU 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, refer to MT28F008 data sheet on www.micron.com.
T6
Data In
OD
) is 25 ns—the duration from OE or
T3
eZ80F91 Development Kit
Bus Contention
®
T4
Data Out
family when it is used in
T
OD
Figure
User Manual
eZ80F91 Module
11.
43