Zilog eZ80F92 - Manual (Page 45)

eZ80F92 Development Kit
User Manual
UM013911-0607 Operational Description
41
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 Table 24.
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.