Zilog EZ80190 - Manual (Page 41)

eZ80190 Development Kit
User Manual
UM014108-0810 Operational Description
37
Jumper J11
The J11 jumper connection controls access to the off-chip Flash memory
device. When the shunt is placed, access to this Flash device is enabled.
See Table 15.
The silk-screened label on the eZ80Acclaim! ® Development Platform for
jumper J11 is incorrect. Currently, it reads DIS_FLASH. The correct label
is EN_FLASH.
Jumper J12
The J12 jumper connection controls the selection of a 5 V or 3 VDC power
supply to the embedded modem, if an embedded modem is used. See
Table 16.
Table 15. J11—EN_FLASH (Off-Chip)*
Shunt
Status
Function Affected Device
IN All access to external Flash memory on the
eZ80190 Module is enabled. External Flash memory on the
eZ80190 Module.
OUT All access to external Flash memory on the
eZ80190 Module is disabled. External Flash memory on the
eZ80190 Module.
Note: As shipped from the factory, external Flash memory is not installed.
Table 16. J12—5VDC/3.3VDC for an Embedded Modem
Shunt
Status
Function Affected Device
1–2 5 VDC is provided to power the embedded modem. Embedded modem.
2–3 3.3 VDC is provided to power the embedded modem. Embedded modem.
Note: