ez80l92 ZiLOG Semiconductor, ez80l92 Datasheet - Page 58

• Manufacturer Part Number: ez80l92
• Description: Ez80acclaim Flash Microcontrollers
• Manufacturer: ZiLOG Semiconductor

eZ80L92 MCU
Product Specification
52
An example of WAIT state operation is illustrated in
Figure
6. In this example, the Chip
Select is configured to provide a single WAIT state. The external peripheral being
accessed drives the WAIT pin Low to request assertion of an additional WAIT state. If the
WAIT pin is asserted for additional system clock cycles, WAIT states are added until the
WAIT pin is de-asserted (High).
T
T
T
CLK
CSx_WAIT
WAIT
X
IN
ADDR[23:0]
DATA[7:0]
(input)
CSx
MREQ
RD
INSTRD
WAIT
Figure 6. Wait State Operation Example (Read Operation)
PS013014-0107
Chip Selects and Wait States