diff --git a/usrc/base_service/xsync_regs.hpp b/usrc/base_service/xsync_regs.hpp
index d60a7da..b92d462 100644
--- a/usrc/base_service/xsync_regs.hpp
+++ b/usrc/base_service/xsync_regs.hpp
@@ -147,11 +147,13 @@ typedef enum {
    *                              TIMECODE输入模块                               *
    *******************************************************************************/
 
-  external_timecode_module   = REGADDOFF__EXTERNAL_TIMECODE + 0,
-  external_timecode_sig_selt = REGADDOFF__EXTERNAL_TIMECODE + 1,
-  external_timecode_format   = REGADDOFF__EXTERNAL_TIMECODE + 2,
-  external_timecode_code0    = REGADDOFF__EXTERNAL_TIMECODE + 3,
-  external_timecode_code1    = REGADDOFF__EXTERNAL_TIMECODE + 4,
+  external_timecode_module      = REGADDOFF__EXTERNAL_TIMECODE + 0,
+  external_timecode_sig_selt    = REGADDOFF__EXTERNAL_TIMECODE + 1,
+  external_timecode_format      = REGADDOFF__EXTERNAL_TIMECODE + 2,
+  external_timecode_code0       = REGADDOFF__EXTERNAL_TIMECODE + 3,
+  external_timecode_code1       = REGADDOFF__EXTERNAL_TIMECODE + 4,
+  external_timecode_freq        = REGADDOFF__EXTERNAL_TIMECODE + 5,
+  external_timecode_freq_direct = REGADDOFF__EXTERNAL_TIMECODE + 6,
 
   /*******************************************************************************
    *                              内部TIMECODE模块                               *