Technical data

15
AUX_PORT
The AUX_PORT connector is a dual row 13
pin Berg-style connector (26 pins total)
configured as follows:
25 23 21 19 17 15 13 11 9 7 5 3 1
{ { { { { { { { { { { { 
{ { { { { { { { { { { { {
26 24 22 20 18 16 14 12 10 8 6 4 2
PIN FUNCTION PIN FUNCTION
1 AUX PA7 2 AUX PA6
3 AUX PA5 4 AUX PA4
5 AUX PA3 6 AUX PA2
7 AUX PA1 8 AUX PA0
9 AUX PC7 10 AUX PC6
11 AUX PC5 12 AUX PC4
13 GND 14 +5
15 AUX PC0 16 AUX PC1
17 AUX PC2 18 AUX PC3
19 AUX PB0 20 AUX PB1
21 AUX PB2 22 AUX PB3
23 AUX PB4 24 AUX PB5
25 AUX PB6 26 AUX PB7
AUX_PORT ADDRESSES
• AUX PA @ $B5F4
• AUX PB @ $B5F5
• AUX PC @ $B5F6
• AUX PORT CONTROL
REGISTER @ $B5F7
See also the Memory Map
MCU_PORT
The MCU_PORT connector is a dual row 17 pin Berg-style connector (34 pins total) configured as
follows:
33 31 29 27 25 23 21 19 17 15 13 11 9 7 5 3 1
{ { { { { { { { { { { { { { { { 
{ { { { { { { { { { { { { { { { {
34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2
PIN FUNCTION PIN FUNCTION PIN FUNCTION PIN FUNCTION
1 PA0 2 PA1 19 GND 20 +5
3 PA2 4 PA3 21 IRQ 22 XIRQ
5 PA4 6 PA5 23 VRL 24 VRL
7 PA6 8 PA7 25 VRH 26 VRH
9 +5 10 +5 27 PE7 28 PE3
11 GND 12 GND 29 PE6 30 PE2
13 PD0/RXD0 14 PD1/TXD0 31 PE5 32 PE1
15 PD2/SI 16 PD3/SO 33 PE4 34 PE0
17 PD4/SCLK 18 PD5/SEL0
PD0 and PD1 are used by the HC11 SCI to implement COM1. PD<2:5> are used by the HC11
SPI to implement the SS:KEYBOARD port. These port D lines can also be used for parallel I/O,
but then they will not be available for COM1 or SS: KEYBOARD. Use caution when assigning port
D lines to other functions.