2 files changed, 19 insertions, 3 deletions

diff --git a/docs/feature_split_keyboard.md b/docs/feature_split_keyboard.md
index a84d38460..27df46a82 100644
--- a/docs/feature_split_keyboard.md
+++ b/docs/feature_split_keyboard.md
@@ -204,6 +204,22 @@ If you're having issues with serial communication, you can change this value, as
 This sets the maximum number of milliseconds before forcing a synchronization of data from master to slave. Under normal circumstances this sync occurs whenever the data _changes_, for safety a data transfer occurs after this number of milliseconds if no change has been detected since the last sync. 
 
 ```c
+#define SPLIT_MAX_CONNECTION_ERRORS 10
+```
+This sets the maximum number of failed communication attempts (one per scan cycle) from the master part before it assumes that no slave part is connected. This makes it possible to use a master part without the slave part connected.
+
+Set to 0 to disable the disconnection check altogether.
+
+```c
+#define SPLIT_CONNECTION_CHECK_TIMEOUT 500
+```
+How long (in milliseconds) the master part should block all connection attempts to the slave after the communication has been flagged as disconnected (see `SPLIT_MAX_CONNECTION_ERRORS` above).
+
+One communication attempt will be allowed everytime this amount of time has passed since the last attempt. If that attempt succeeds, the communication is seen as working again.
+
+Set to 0 to disable this throttling of communications while disconnected. This can save you a couple of bytes of firmware size.
+
+```c
 #define SPLIT_TRANSPORT_MIRROR
 ```
 
diff --git a/docs/serial_driver.md b/docs/serial_driver.md
index ed989b0a1..3e89deffa 100644
--- a/docs/serial_driver.md
+++ b/docs/serial_driver.md
@@ -63,7 +63,7 @@ Configure the hardware via your config.h:
                                    //  5: about 19200 baud
 #define SERIAL_USART_DRIVER SD1    // USART driver of TX pin. default: SD1
 #define SERIAL_USART_TX_PAL_MODE 7 // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 7
-#define SERIAL_USART_TIMEOUT 100 // USART driver timeout. default 100
+#define SERIAL_USART_TIMEOUT 20    // USART driver timeout. default 20
 ```
 
 You must also enable the ChibiOS `SERIAL` feature:
@@ -105,10 +105,10 @@ Next configure the hardware via your config.h:
                                    //  3: 57600 baud
                                    //  4: 38400 baud
                                    //  5: 19200 baud
-#define SERIAL_USART_DRIVER SD1 // USART driver of TX and RX pin. default: SD1
+#define SERIAL_USART_DRIVER SD1    // USART driver of TX and RX pin. default: SD1
 #define SERIAL_USART_TX_PAL_MODE 7 // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 7
 #define SERIAL_USART_RX_PAL_MODE 7 // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 7
-#define SERIAL_USART_TIMEOUT 100 // USART driver timeout. default 100
+#define SERIAL_USART_TIMEOUT 20    // USART driver timeout. default 20
 ```
 
 You must also enable the ChibiOS `SERIAL` feature: