EZ80L92MCU Datasheet, PDF (77/241 Pages) Zilog, Inc. – eZ80Acclaim Flash Microcontrollers

eZ80L92 MCU
Product Specification
62
System Clock
ADDR[23:0]
DATA[7:0]
T1
T2
T3
T_WAIT
T4
CSx
ALE
WR
READY
RD
MREQ
or IORQ
Figure 13. Intel™ Bus Mode Write Timing Example (Multiplexed Address and Data Bus)
Motorola Bus Mode
Chip selects configured for Motorola Bus Mode modify the eZ80^® bus signals to dupli-
cate an eight-state memory transfer similar to that found on Motorola-style microproces-
sors. The bus signals (and eZ80L92 I/O pins) are mapped as illustrated in Figure 14.
PS013012-1004
PRELIMINARY
Chip Selects and Wait States