Zilog EZ80F916 Manuel d'utilisateur télécharger pdf (Page 18)

eZ80F91 Modular Development Kit

User Manual

UM017010-0112 Peripheral and I/O External Interface

The following signals are not connected and are unavailable on the as-

sociated pins:

•

Pin 36, DIS_FLASH

•

Pin 42, CS1

•

Pin 53, MREQ

•

Pin 54, IOREQ

•

Pin 58, INSTRD

•

Pin 59, BUSACK

•

Pin 60, BUSREQ

Table 3. eZ80Acclaim! MDS Adapter Board Peripheral Bus

External Connector JP1 Identification

Pin Symbol Signal Direction Active Level eZ80F91 Signal

1–4, 6,

8, 35

Unused n/a n/a n/a

5TRSTN Input Low Yes

11 A6 Bidirectional n/a Yes

12 A0 Bidirectional n/a Yes

13 A10 Bidirectional n/a Yes

14 A3 Bidirectional n/a Yes

17 A8 Bidirectional n/a Yes

18 A7 Bidirectional n/a Yes

Notes:

1. To simplify interface description, Power and Ground nets are omitted from this table. The entire interface is

represented in the eZ80Acclaim! MDS Adapter Board schematics; see Figures 8 and 9.

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

Caution:

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 40 41

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Zilog EZ80F916 Manuel d'utilisateur Page 18