EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 107

• Manufacturer Part Number: EZ80F91MCU
• Description: eZ80Acclaim-TM Flash Microcontrollers
• Manufacturer: ZILOG [Zilog, Inc.]

Figure 15. Example: Intel™ Bus Mode Write Timing—Multiplexed Address and Data Bus
PS019209-0504
Motorola Bus Mode
System Clock
ADDR[23:0]
DATA[7:0]
Chip selects configured for Motorola bus mode modify the CPU bus signals to
duplicate an eight-state memory transfer similar to that found on Motorola-style
microcontrollers. The bus signals (and eZ80F91 I/O pins) are mapped as illus-
trated in Figure 16.
or IORQ
READY
MREQ
ALE
CSx
WR
RD
T1
P R E L I M I N A R Y
T2
T3
T
WAIT
Chip Selects and Wait States
Product Specification
T4
eZ80F91 MCU
88