Zilog EZ80F91 Instrukcja Użytkownika Pobierz pdf (Strona 24)

eZ80F91 Development Kit

User Manual

UM014220-0508 eZ80 Development Kit

Internal On-Chip Flash Memory

To program internal on-chip Flash memory, the JP3 shunt must be

installed. Table 5 lists the setting for the JP3 jumper that is resident on the

eZ80F91 Module.

Application Module Interface

An Application Module Interface is provided to allow you to add an appli-

cation-specific module to the

eZ80Acclaim!

Development Kit. Zilog’s

47 HALT_SLP Input Low Yes

48 NMI

Output Low Yes

49 V

50 Reserved

Notes

1. For the sake of simplicity in describing the interface, Power and Ground nets are omitted from

this table. The entire interface is represented in the eZ80F91 Module Schematics, see Figure 23

through Figure 25.

2. The Power and Ground nets are connected directly to the eZ80F91 device.

Table 5. Jumper, eZ80F91 Module

Symbol Jumper Name

Shunt

Status Function Affected Device

JP3 Write Enable

(WR_EN)

In On-chip Flash is enabled for

writing.

On-chip Flash

Out On-chip Flash memory is write-

protected.

On-chip Flash

Table 4. eZ80Acclaim!

Development Kit I/O Connector Identification—JP2

Pin # Symbol Signal Direction Active Level eZ80F91 Signal

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 77 78

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