diff --git a/configs/ez80f910200zco/ostest/defconfig b/configs/ez80f910200zco/ostest/defconfig
index d244bc68bde..8a8d8fe0e7a 100644
--- a/configs/ez80f910200zco/ostest/defconfig
+++ b/configs/ez80f910200zco/ostest/defconfig
@@ -74,7 +74,7 @@ CONFIG_ARCH_CHIP_EZ80F92=n
 CONFIG_ARCH_CHIP_EZ80F93=n
 CONFIG_ARCH_BOARD=ez80f910200zco
 CONFIG_ARCH_BOARD_EZ80F910200ZCO=y
-CONFIG_ARCH_NOINTC=y
+CONFIG_ARCH_NOINTC=n
 CONFIG_ARCH_IRQPRIO=n
 CONFIG_BOARD_LOOPSPERMSEC=1250
 CONFIG_ENDIAN_BIG=y
@@ -109,6 +109,31 @@ CONFIG_UART1_PARITY=0
 CONFIG_UART0_2STOP=0
 CONFIG_UART1_2STOP=0
 
+#
+# ez80 EMAC
+#
+# CONFIG_EZ80_EMAC - Enables support for ez80 EMAC driver.
+# CONFIG_EZ80_FIAD - Provides the MII address of the PHY device
+# CONFIG_EZ80_PKTBUFSIZE, CONFIG_EZ80_NTXPKTBUFS, and CONFIG_EZ80_NRXPKTBUFS -
+#   The size of one packet buffer and the number of Rx and Tx packet
+#   buffers. This must add up to exactly 8192 bytes.
+# CONFIG_EZ80_MDCDIV=1 - The value to use for the divider to derive
+#   the MII MDC clock from SLCK.  Options are 1->4; 2->6; 3->8; 4->10;
+#   5->14; 6->20; and 7->28
+# CONFIG_EZ80_TXPOLLTIMERMS - Specifies how often the EMAC controller
+#   should poll for a Tx packet (milliseconds)
+# CONFIG_ARCH_MCFILTER - Enalbes multicast MAC address filtering (not
+#   fully implemented
+CONFIG_EZ80_EMAC=n
+CONFIG_EZ80_FIAD=0x1f
+CONFIG_EZ80_PKTBUFSIZE=64
+CONFIG_EZ80_NTXPKTBUFS=64
+CONFIG_EZ80_NRXPKTBUFS=64
+CONFIG_EZ80_PKTBUFSIZE=64
+CONFIG_EZ80_MDCDIV=0
+CONFIG_EZ80_TXPOLLTIMERMS=10
+CONFIG_ARCH_MCFILTER=n
+
 #
 # General build options
 #
diff --git a/configs/ez80f910200zco/ostest/ostest.zdsproj b/configs/ez80f910200zco/ostest/ostest.zdsproj
index 08247148bd8..30cb49a54de 100755
--- a/configs/ez80f910200zco/ostest/ostest.zdsproj
+++ b/configs/ez80f910200zco/ostest/ostest.zdsproj
@@ -42,7 +42,7 @@
 </tool>
 <tool name="Debugger">
 <options>
-<option name="target" type="string" change-action="rebuild">eZ80DevPlatform_F91_Flash</option>
+<option name="target" type="string" change-action="rebuild">eZ80F91ModDevKit_Flash</option>
 <option name="debugtool" type="string" change-action="none">Simulator</option>
 <option name="usepageerase" type="boolean" change-action="none">true</option>
 </options>
@@ -244,4 +244,4 @@
 <breakpoints>
 </breakpoints>
 
-</project>
+</project>
\ No newline at end of file