diff --git a/Custom_RTC_TLZA.cs b/Custom_RTC_TLZA.cs
index 1cc04cd..a3bc6c1 100644
--- a/Custom_RTC_TLZA.cs
+++ b/Custom_RTC_TLZA.cs
@@ -269,6 +269,6 @@ namespace Antmicro.Renode.Peripherals.Timers
             this.Log(LogLevel.Info, "RTC (基地址0x{0:X8}) 已复位，时间重置", baseAddress);
         }
 
-        public long Size => 0x1000;  // 4KB地址空间
+        public long Size => 0x80;  // 4KB地址空间
     }
 }
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