Zilog EZ80190 Manual de usuario descargar pdf (Pagina 25)

eZ80190 Development Kit

User Manual

UM014108-0810 Operational Description

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

C Clock Bidirectional

SDA 7 I

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,

Port A, Bit [7:1] Bidirectional

Note: *All of the signals are driven directly by the CPU.

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 86 87

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Zilog EZ80190 Manual de usuario Pagina 25

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