diff --git a/fuzzers/030-iob/generate.py b/fuzzers/030-iob/generate.py
index 4da1461e..e6d120de 100644
--- a/fuzzers/030-iob/generate.py
+++ b/fuzzers/030-iob/generate.py
@@ -26,7 +26,7 @@ def drives_for_iostandard(iostandard):
         drives = [4, 8, 12, 16, 24]
     elif iostandard == 'LVCMOS12':
         drives = [4, 8, 12]
-    elif iostandard == 'SSTL135':
+    elif iostandard in ['SSTL135', 'SSTL15']:
         return ['_FIXED']
     else:
         drives = [4, 8, 12, 16]
@@ -34,8 +34,10 @@ def drives_for_iostandard(iostandard):
     return drives
 
 
-STEPDOWN_IOSTANDARDS = ['LVCMOS12', 'LVCMOS15', 'LVCMOS18', 'SSTL135']
-IBUF_LOW_PWR_SUPPORTED = ['SSTL135']
+STEPDOWN_IOSTANDARDS = [
+    'LVCMOS12', 'LVCMOS15', 'LVCMOS18', 'SSTL135', 'SSTL15'
+]
+IBUF_LOW_PWR_SUPPORTED = ['SSTL135', 'SSTL15']
 
 
 def main():
@@ -185,6 +187,7 @@ def main():
                     drive_opts.add(mk_drive_opt(opt, drive_opt))
 
             drive_opts.add(mk_drive_opt("SSTL135", None))
+            drive_opts.add(mk_drive_opt("SSTL15", None))
 
             segmaker.add_site_group_zero(
                 segmk, site, '', drive_opts, mk_drive_opt('LVCMOS25', '12'),
diff --git a/fuzzers/030-iob/process_rdb.py b/fuzzers/030-iob/process_rdb.py
index e3385d1f..929bc7a1 100644
--- a/fuzzers/030-iob/process_rdb.py
+++ b/fuzzers/030-iob/process_rdb.py
@@ -66,7 +66,7 @@ def main():
     iostandard_lines = []
     with open(args.input_rdb) as f:
         for l in f:
-            if ('.SSTL135' in l or '.LVCMOS' in l
+            if ('.SSTL' in l or '.LVCMOS' in l
                     or '.LVTTL' in l) and 'IOB_' in l:
                 iostandard_lines.append(l)
             else:
diff --git a/fuzzers/030-iob/top.py b/fuzzers/030-iob/top.py
index 3eac39e2..d0b5726c 100644
--- a/fuzzers/030-iob/top.py
+++ b/fuzzers/030-iob/top.py
@@ -56,10 +56,12 @@ def run():
         'LVCMOS33',
         'LVTTL',
         'SSTL135',
+        'SSTL15',
     ]
 
     diff_map = {
         "SSTL135": ["DIFF_SSTL135"],
+        "SSTL15": ["DIFF_SSTL15"],
     }
 
     IN_TERM_ALLOWED = [
@@ -81,7 +83,7 @@ def run():
         drives = [4, 8, 12, 16, 24]
     elif iostandard in ['LVCMOS12']:
         drives = [4, 8, 12]
-    elif iostandard == 'SSTL135':
+    elif iostandard in ['SSTL135', 'SSTL15']:
         drives = None
     else:
         drives = [4, 8, 12, 16]
@@ -104,7 +106,7 @@ def run():
 
     params['iobanks'] = iobanks
 
-    if iostandard in ['SSTL135']:
+    if iostandard in ['SSTL135', 'SSTL15']:
         for iobank in iobanks:
             params['INTERNAL_VREF'][iobank] = random.choice(
                 (