EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 119

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

PS019209-0504
During bus acknowledge cycles, the Memory and I/O Chip Select logic is con-
trolled by the external address bus and external IORQ and MREQ signals.
The following Chip Select features are not available during bus acknowledge
cycles:
1. The Chip Select logic does not insert wait states during bus acknowledge
2. The bus mode controller does not function during bus acknowledge cycles.
3. Internal registers and memory addresses in the eZ80F91 device are not
cycles regardless of the WAIT configuration for the decoded Chip Select.
accessible during bus acknowledge cycles.
P R E L I M I N A R Y
Product Specification
eZ80F91 MCU
Bus Arbiter
100