diff --git a/devices/serial/escc.cpp b/devices/serial/escc.cpp
index 76073b8..e778dd9 100644
--- a/devices/serial/escc.cpp
+++ b/devices/serial/escc.cpp
@@ -1,6 +1,6 @@
 /*
 DingusPPC - The Experimental PowerPC Macintosh emulator
-Copyright (C) 2018-22 divingkatae and maximum
+Copyright (C) 2018-24 divingkatae and maximum
                       (theweirdo)     spatium
 
 (Contact divingkatae#1017 or powermax#2286 on Discord for more info)
@@ -101,12 +101,10 @@ uint8_t EsccController::read(uint8_t reg_offset)
         value = this->ch_a->receive_byte();
         break;
     case EsccReg::Enh_Reg_B:
-        LOG_F(WARNING, "ESCC_B: reading from unimplemented register 0x%x", reg_offset);
-        value = 0;
+        value = this->ch_b->get_enh_reg();
         break;
     case EsccReg::Enh_Reg_A:
-        LOG_F(WARNING, "ESCC_A: reading from unimplemented register 0x%x", reg_offset);
-        value = 0;
+        value = this->ch_a->get_enh_reg();
         break;
     default:
         LOG_F(WARNING, "ESCC: reading from unimplemented register 0x%x", reg_offset);
@@ -131,6 +129,12 @@ void EsccController::write(uint8_t reg_offset, uint8_t value)
     case EsccReg::Port_A_Data:
         this->ch_a->send_byte(value);
         break;
+    case EsccReg::Enh_Reg_B:
+        this->ch_b->set_enh_reg(value);
+        break;
+    case EsccReg::Enh_Reg_A:
+        this->ch_a->set_enh_reg(value);
+        break;
     default:
         LOG_F(9, "ESCC: writing 0x%X to unimplemented register 0x%x", value, reg_offset);
     }
@@ -336,6 +340,26 @@ uint8_t EsccChannel::receive_byte()
     return c;
 }
 
+uint8_t EsccChannel::get_enh_reg()
+{
+    return this->enh_reg;
+}
+
+void EsccChannel::set_enh_reg(uint8_t value)
+{
+    uint8_t changed_bits = value ^ this->enh_reg;
+    if (changed_bits & 0x10) {
+        if (value & 0x10)
+            LOG_F(ERROR, "%s: CTS connected to GPIO; DCD connected to GND", this->name.c_str());
+        else
+            LOG_F(INFO, "%s: CTS connected to TRXC_In_l; DCD connected to GPIO", this->name.c_str());
+        this->enh_reg = value & 0x10;
+    } else if (changed_bits & ~0x10) {
+        if (value & ~0x10)
+            LOG_F(ERROR, "%s: Ignoring attempt to set Enh_Reg bits 0x%02x", this->name.c_str(), value & ~0x10);
+    }
+}
+
 void EsccChannel::dma_start_tx()
 {
 
diff --git a/devices/serial/escc.h b/devices/serial/escc.h
index c92c6f0..f344e39 100644
--- a/devices/serial/escc.h
+++ b/devices/serial/escc.h
@@ -104,6 +104,8 @@ public:
     void write_reg(int reg_num, uint8_t value);
     void send_byte(uint8_t value);
     uint8_t receive_byte();
+    uint8_t get_enh_reg();
+    void set_enh_reg(uint8_t value);
 
     void set_dma_channel(int dir_index, DmaBidirChannel *dma_ch) {
         this->dma_ch[dir_index] = dma_ch;
@@ -163,6 +165,7 @@ private:
     uint8_t         dpll_clock_src;
     uint8_t         brg_active;
     uint8_t         brg_clock_src;
+    uint8_t         enh_reg = 0;
 
     std::unique_ptr<CharIoBackEnd>  chario;
 };