ZiLOG Zdots eZ80AcclaimPlus, User Manual

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Appendix A UM024401-0412
14
eZ80AcclaimPlus! Development Kit
User Manual
Schematic diagrams for the eZ80AcclaimPlus! Development Board are provided in the
Schematic Diagrams chapter on page 18.
The eZ80Acclaim Plus! Development Board is driven by the eZ80F91 MCU with an exter-
nal 50 MHz (Y1) crystal and an on-chip PLL programmed to run on the eZ80F91 MCU at
its internal frequency of 50 MHz. The chip employs an Ethernet Media Access Controller
(EMAC) with a Media-Independent Interface (MII) that allows the eZ80F91 MCU to it to
interface to all available industry-standard PHYs.
For this eZ80Acclaim Plus! implementation, the ICS1894-40 (U5) was selected to provide
a suitable price/performance solution.
Debug connector (J1) provides access to the eZ80F91 MCU so that the user can download
and control the execution of the sample projects provided with the Kit or his/her own proj-
ect(s) using the USB Smart Cable included in the Kit.
Figure 7. eZ80AcclaimPlus! Development Kit Block Diagram
GPIO Connector
eZ80F91
144BGA
5MHz/PLL
PHY
FTDI
USB
Mini-B
External
Power
Up to 1.5A
SRAM
(1MB, 2 x 512KB)
Flash
(8 MB)
LDO
DB9
RJ45
MAGN
ICS1894 J3011
S29GL064N CY7C1049DV33-10ZSXI x 2
3.3V/
400mA
UART0
MII
UART1
Note: