diff --git a/arch/z80/src/common/up_assert.c b/arch/z80/src/common/up_assert.c
index 273d1867d2..55a61490ef 100644
--- a/arch/z80/src/common/up_assert.c
+++ b/arch/z80/src/common/up_assert.c
@@ -88,19 +88,19 @@ static void _up_assert(int errorcode) /* noreturn_function */
 
   if (up_interrupt_context() || running_task()->flink == NULL)
     {
-       up_irq_save();
-        for (;;)
-          {
+      up_irq_save();
+      for (; ; )
+        {
 #if CONFIG_BOARD_RESET_ON_ASSERT >= 1
-            board_reset(CONFIG_BOARD_ASSERT_RESET_VALUE);
+          board_reset(CONFIG_BOARD_ASSERT_RESET_VALUE);
 #endif
 #ifdef CONFIG_ARCH_LEDS
-            board_autoled_on(LED_PANIC);
-            up_mdelay(250);
-            board_autoled_off(LED_PANIC);
-            up_mdelay(250);
+          board_autoled_on(LED_PANIC);
+          up_mdelay(250);
+          board_autoled_off(LED_PANIC);
+          up_mdelay(250);
 #endif
-          }
+        }
     }
   else
     {
@@ -190,6 +190,8 @@ void up_assert(void)
   syslog_flush();
 
 #ifdef CONFIG_BOARD_CRASHDUMP
+  /* Execute board-specific crash dump logic */
+
   board_crashdump(Z80_getsp(), running_task(), filename, lineno);
 #endif
 
diff --git a/boards/z80/ez80/z20x/scripts/z20x_copytoram.linkcmd b/boards/z80/ez80/z20x/scripts/z20x_copytoram.linkcmd
index f7a9d39241..630b22c0d5 100644
--- a/boards/z80/ez80/z20x/scripts/z20x_copytoram.linkcmd
+++ b/boards/z80/ez80/z20x/scripts/z20x_copytoram.linkcmd
@@ -52,7 +52,7 @@ DEFINE __crtl = 1
 
 DEFINE __CS0_LBR_INIT_PARAM = $04
 DEFINE __CS0_UBR_INIT_PARAM = $0b
-DEFINE __CS0_CTL_INIT_PARAM = $08
+DEFINE __CS0_CTL_INIT_PARAM = $28
 DEFINE __CS0_BMC_INIT_PARAM = $00
 DEFINE __CS1_LBR_INIT_PARAM = $00
 DEFINE __CS1_UBR_INIT_PARAM = $00
diff --git a/boards/z80/ez80/z20x/scripts/z20x_flash.linkcmd b/boards/z80/ez80/z20x/scripts/z20x_flash.linkcmd
index 0b28dccf74..dcb051959c 100644
--- a/boards/z80/ez80/z20x/scripts/z20x_flash.linkcmd
+++ b/boards/z80/ez80/z20x/scripts/z20x_flash.linkcmd
@@ -49,7 +49,7 @@ DEFINE __crtl = 1
 
 DEFINE __CS0_LBR_INIT_PARAM = $04
 DEFINE __CS0_UBR_INIT_PARAM = $0b
-DEFINE __CS0_CTL_INIT_PARAM = $08
+DEFINE __CS0_CTL_INIT_PARAM = $28
 DEFINE __CS0_BMC_INIT_PARAM = $00
 DEFINE __CS1_LBR_INIT_PARAM = $00
 DEFINE __CS1_UBR_INIT_PARAM = $00
diff --git a/boards/z80/ez80/z20x/scripts/z20x_loader.linkcmd b/boards/z80/ez80/z20x/scripts/z20x_loader.linkcmd
index 06a0579586..a1d22325e4 100644
--- a/boards/z80/ez80/z20x/scripts/z20x_loader.linkcmd
+++ b/boards/z80/ez80/z20x/scripts/z20x_loader.linkcmd
@@ -56,7 +56,7 @@ DEFINE __progend = $0bffff
 
 DEFINE __CS0_LBR_INIT_PARAM = $04
 DEFINE __CS0_UBR_INIT_PARAM = $0b
-DEFINE __CS0_CTL_INIT_PARAM = $08
+DEFINE __CS0_CTL_INIT_PARAM = $28
 DEFINE __CS0_BMC_INIT_PARAM = $00
 DEFINE __CS1_LBR_INIT_PARAM = $00
 DEFINE __CS1_UBR_INIT_PARAM = $00
diff --git a/boards/z80/ez80/z20x/scripts/z20x_program.linkcmd b/boards/z80/ez80/z20x/scripts/z20x_program.linkcmd
index 5ee7d03f47..509cdc58a3 100644
--- a/boards/z80/ez80/z20x/scripts/z20x_program.linkcmd
+++ b/boards/z80/ez80/z20x/scripts/z20x_program.linkcmd
@@ -59,7 +59,7 @@ DEFINE __progend = $0bffff
 
 DEFINE __CS0_LBR_INIT_PARAM = $04
 DEFINE __CS0_UBR_INIT_PARAM = $0b
-DEFINE __CS0_CTL_INIT_PARAM = $08
+DEFINE __CS0_CTL_INIT_PARAM = $28
 DEFINE __CS0_BMC_INIT_PARAM = $00
 DEFINE __CS1_LBR_INIT_PARAM = $00
 DEFINE __CS1_UBR_INIT_PARAM = $00