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+# Registers
+
+## I2C_SR1
+
+|  15   |   14  |   13  |   12  |   11  |   10  |   9   |   8   |  7  |   6  |   5  |    4  |    3  |  2  |   1  | 0  |
+|-------|-------|-------|-------|-------|-------|-------|-------|-----|------|------|-------|-------|-----|------|----|
+|  SMB  |  TIME |  Res. |   PEC |  OVR  |   AF  |  ARLO |  BERR | TxE | RxNE | Res. | STOPF | ADD10 | BTF | ADDR | SB |
+| ALERT |   OUT |       |   ERR |       |       |       |       |     |      |      |       |       |     |      |    |
+| rc_w0 | rc_w0 |       | rc_w0 | rc_w0 | rc_w0 | rc_w0 | rc_w0 |  r  |   r  |      |    r  |   r   |  r  |   r  |  r |
+
+## I2C_SR2
+
+| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7     |  6   |   5   |   4  |   3  |  2  |  1   |  0   |
+|           PEC[7:0]                  | DUALF | SMB  | SMBDE | GEN  | Res. | TRA | BUSY |  MSL |
+|                                     |       | HOST | FAULT | CALL |      |     |      |      |
+|  r |  r | r  | r  | r  | r  | r | r |  r    |   r  |    r  |   r  |      |  r  |  r   |   r  |
+
+
+
+    Expected: 00030040:
+    
+    SR2: 0000 0000 0000 0011 = BUSY, MSL
+    SR1: 0000 0000 0100 0000 = RxNE
+    
+    Actual: 0x00070084:
+    SR2: 0000 0000 0000 0111 = TRA, BUSY, MSL
+    SR1: 0000 0000 1000 0100 = TxE, BTF
+