From 6f6eb8436a4e60a224ad95157a9387bbeae5c389 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20Schr=C3=B6der?= <mi.schroeder@netcologne.de>
Date: Fri, 3 Feb 2023 15:39:21 +0100
Subject: [PATCH] typo in description of in[8]

---
 06_IO_Devices/03_SPI/Readme.md | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/06_IO_Devices/03_SPI/Readme.md b/06_IO_Devices/03_SPI/Readme.md
index aee0ccd..7d1f1ef 100644
--- a/06_IO_Devices/03_SPI/Readme.md
+++ b/06_IO_Devices/03_SPI/Readme.md
@@ -6,18 +6,18 @@ The special function register `SPI`  memory mapped to address 4100 enables HACK
 
 ### Chip specification
 
-| IN/OUT | wire     | function                                    |
-| ------ | -------- | ------------------------------------------- |
-| IN     | in[7:0]  | byte to be sent.                            |
-| IN     | in[8]    | =1 send byte and set CSX low                |
-| IN     | in[8]    | =0 pull CSX high without sending byte       |
-| IN     | load     | =1 initiates the transmission, when in[8]=1 |
-| OUT    | out[15]  | =0 chip is busy, =0 chip is ready           |
-| OUT    | out[7:0] | received byte (when out[15]=0)              |
-| OUT    | CSX      | chip select not                             |
-| OUT    | SDO      | serial data out                             |
-| OUT    | SCK      | serial clock                                |
-| IN     | SDI      | serial data in                              |
+| IN/OUT | wire     | function                                            |
+| ------ | -------- | --------------------------------------------------- |
+| IN     | in[7:0]  | byte to be sent.                                    |
+| IN     | in[8]    | =0 (and load=1) send byte and set CSX low           |
+| IN     | in[8]    | =1 (and load =1) pull CSX high without sending byte |
+| IN     | load     | =1 initiates the transmission, when in[8]=0         |
+| OUT    | out[15]  | =0 chip is busy, =0 chip is ready                   |
+| OUT    | out[7:0] | received byte (when out[15]=0)                      |
+| OUT    | CSX      | chip select not                                     |
+| OUT    | SDO      | serial data out                                     |
+| OUT    | SCK      | serial clock                                        |
+| IN     | SDI      | serial data in                                      |
 
 When load=1 and in[8]=0 transmission of byte in[7:0] is initiated. CSX is goes low (and stays low even when transmission is completed). The byte is send to SDO bitwise together with 8 clock signals on SCK. At the same time the SPI receives a byte at SDI. During transmission out[15] is 1. After 16 clock cycles the transmission of one byte is completed. out[15] goes low and SPI outputs the received byte to out[7:0].