--- a/Scan/MD2/pinout	Sat Dec 06 00:35:39 2014 -0800
+++ b/Scan/MD2/pinout	Sat Dec 06 00:55:36 2014 -0800
@@ -1,7 +1,7 @@
 Pin Usage
 =========
 
-mk20dx128vlf5
+mk20dx256vlh7
 
  ----
 |Keys|
@@ -9,19 +9,101 @@
 
 * Strobe (Columns)
 
-PTB0
-PTB1
+TODO
+
+* Sense (Rows)
+
+TODO
+
+
+ -----
+|Clock|
+ -----
+
+PTA18 <-> PTA19
+
+
+ ---
+|I2C|
+ ---
+
+* Main - Connect to all ISSI Chips - Also break out header for debugging
+
+PTB0 - SCL0
+PTB1 - SDA0
+
+* Reserve - Might be used later if I2C bus is too slow with more than 1 ISSI chip
+
+PTE0 - SDA1
+PTE1 - SCL1
+
+* ISSI Control (enough pins for 3 chips reserved)
+
+PTC0 - INTB Chip 1
+PTC1 - INTB Chip 2
+PTC2 - INTB Chip 3 (Only needed if more than 96 RGB LEDs are required)
+
+PTA4 - SDB (tied to tall Chips, hardware shutdown)
+
+
+ ---
+|DAC|
+ ---
+
+DAC0 (N/C)
+
+
+ ----
+|UART|
+ ----
+
+* Comm - Will be used on split keyboards
+
+PTC3 - RX1 (N/C)
+PTC4 - TX1 (N/C)
+
+
+ -----
+|Debug|
+ -----
+
+* SWD - (Main reflash header)
+
+PTA0 (Pull-down)
+PTA3 (Pull-up)
+
+* LEDs
+
+PTA5 (LED only for PCB, not Teensy)
+
+* UARTs
+
+PTA1 - RX0 (UART Debug Header)
+PTA2 - TX0 (UART Debug Header)
+
+
+ ------
+|Unused|
+ ------
+
+* GPIO
+
+PTA12
+PTA13
 PTB2
 PTB3
 PTB16
 PTB17
-PTC4
+PTB18
+PTB19
 PTC5
+PTC6
+PTC7
+PTC8
+PTC9
+PTC10
+PTC11
 PTD0
-
-
-* Sense (Rows)
-
 PTD1
 PTD2
 PTD3
@@ -30,46 +112,7 @@
 PTD6
 PTD7
 
-
- -----
-|Debug|
- -----
-
-* SWD
-
-PTA0 (Pull-down)
-PTA3 (Pull-up)
-
-* LEDs
-
-PTA19 (LED only for PCB, not McHCK) (XTAL)
-
-* UARTs
-
-PTA1 - RX0
-PTA2 - TX0
-
-
- ------
-|Unused|
- ------
-
-* GPIO
-
-PTA1 (Not broken out on PCB, available on McHCK) (Pull-up)
-PTA2 (")
-PTA4 (Pull-up)
-PTA18 (EXTAL)
-
-PTC0
-PTC1
-PTC2
-PTC3
-PTC6
-PTC7
-
 * Analog
 
-ADC0_DP0
-ADC0_DM0
+TODO