Connectors – Zilog EZ80L92 User Manual
Page 44
eZ80L92 Development Kit
User Manual
Operational Description
UM012913-0407
40
Jumper J20
The J20 jumper connection controls the selection of the external chip
select in the external application module. When the shunt is placed, the
external chip select signal, CS_EX, is disabled. See
Connectors
A number of connectors are available for connecting external devices
such as the ZPAK II emulator, PC serial ports, external modems, the con-
sole, and LAN/telephone lines.
J6 and J8 are the headers, or connectors, that provide pin-outs to connect
any external application module, such as ZiLOG’s Thermostat Applica-
tion Module.
Connector J6
The J6 connector provides pin-outs to make use of GPIO functionality.
Connector J8
The J8 connector provides pin-outs to access memory and other control
signals.
Table 24. J20—EX_FL_DIS
Shunt
Status
Function
Affected Device
IN
The jumper for EX_FL_DIS is IN. The chip select on the application module
is disabled.
OUT
The jumper for EX_FL_DIS is OUT. The chip select on the application module
is enabled.