diff --git a/csrc/u8x8.h b/csrc/u8x8.h
index fc7d5d42..d4a07759 100644
--- a/csrc/u8x8.h
+++ b/csrc/u8x8.h
@@ -211,6 +211,8 @@ struct u8x8_display_info_struct
   /* AVR: below 70: DIV2, 8 MHz, >= 70 --> 4MHz clock (DIV4) */
   uint8_t sck_pulse_width_ns;		/* UC1701: 50ns */
   
+  /* previous name "sck_takeover_edge" renamed to "spi_mode" */
+  /* bit 0 of spi_mode is equal to the value of the previous variable sck_takeover_edge */ 
   /* SPI has four clock modes: */
   /*   0: clock active high, data out on falling edge */
   /*   1: clock active high, data out on rising edge */
diff --git a/csrc/u8x8_d_st7920.c b/csrc/u8x8_d_st7920.c
index 0fefca30..e4546a6b 100644
--- a/csrc/u8x8_d_st7920.c
+++ b/csrc/u8x8_d_st7920.c
@@ -156,7 +156,7 @@ static const u8x8_display_info_t u8x8_st7920_192x32_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 20,		
   /* sck_pulse_width_ns = */  140,	/* datasheet ST7920 */
-  /* spi_mode = */ 1,		/* active high, rising edge */
+  /* spi_mode = */ 1,		/* old: sck_takeover_edge, new: active high (bit 1), rising edge (bit 0) */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 30,
   /* write_pulse_width_ns = */ 40,