Zilog EZ80190 User Manual
Page 25
eZ80190 Development Kit
User Manual
UM014108-0810
Operational
Description
21
To design an application module, the user should be familiar with the
architecture and features of the eZ80190 Module currently installed.
Implementing an application module via the Application Module Interface
requires that the eZ80190 Module also be mounted on the eZ80Acclaim!
®
Development Platform, because it (the eZ80190 Module) contains the
eZ80190 microprocessor. To mount an application module, use the two
male connectors J6 and J8.
Connector J6 carries the GPIO signals, and connector J8 carries memory
and control signals. Tables 4 and 5 list the signals and functions related to
each of these jumpers by pin. Power and ground signals are omitted for
the sake of simplicity.
Table 4. GPIO Port Connector J6*
Signal
Pin #
Function
Direction
Notes
SCL
5
I
2
C Clock
Bidirectional
SDA
7
I
2
C Data
Bidirectional
MOD_DIS
9
Modem Disable
Input
If a shunt is installed between
pins 6 and 9, the modem
function on the eZ80Acclaim!
®
Development Platform is
disabled.
MWAIT
13
WAIT signal for
the CPU
Input
This signal does not perform a
function on the eZ80190
Module.
EM_D0
15
GPIO, Bit 0
Bidirectional
CS3
17
Chip Select 3 of
the CPU
Output
This signal is also present on
the J8.
EM_D[7:1]
21,23,25,
27,29,31,
33
Port A, Bit [7:1]
Bidirectional
Note: *All of the signals are driven directly by the CPU.