Typical Eim System Connections; Figure 11-1 Example Of Eim Interface To Memory And Peripherals - Motorola DragonBall MC9328MX1 Reference Manual

External Interface Module (EIM)

11.4 Typical EIM System Connections

The following figures show example connections of the EIM with burst and asynchronous memories:
• Figure 11-1 illustrates a typical set of EIM interfaces to external memory and peripherals.
• Figure 11-2 illustrates the EIM interface to two supported external burst flash devices.
External
Interface
Module
Figure 11-1. Example of EIM Interface to Memory and Peripherals
11-6
A [31:0]
CS2
EB [0]
OE
D [31:0]
EB [1]
CS1
RW
CS0
EB [2]
CS3
ECB
LBA
BCLK
CS5
CS4
EB [3]
MC9328MX1 Reference Manual
A [16:0]
Address [16:0]
CS
RAM
EB [0]
128Kx8
WE
OE
D [31:24]
Data [7:0]
A [16:1]
Address [15:0]
EB [0]
UBS
EB [1]
LBS
RAM
CS
64Kx16
RW
WE
OE
OE
D [31:16]
Data [15:0]
A [19:1]
Address [18:0]
CS
Intel
EB [2]
Flash
WE
512Kx16
OE
OE
D [15:0]
Data [15:0]
A0
RS
E
ACIA
R'W
R/W
D [7:0]
Data [7:0]
A0
RS
LCD
E
Control
RW
R/W
D [7:0]
Data [7:0]
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