MOGlabs ARF021, Manual

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Chapter 7. Digital I/O
Pin Signal Pin Signal Pin Signal
1 3.3 V 11 A4 21 GND
2 3.3 V 12 A5 22 GND
3 3.3 V 13 A6 23 B4
4 GND 14 A7 24 B5
5 A0 15 GND 25 B6
6 A1 16 GND 26 B7
7 A2 17 B0 27 GND
8 A3 18 B1 28 GND
9 GND 19 B2 29 GND
10 GND 20 B3 30 GND
Figure 7.2:
High-speed digital IO connector (internal). Note that the FFC
cable can be inserted upside-down, reversing the pin ordering.
Version Driver Bank size Example configuration
Rev2 74LVT2244
Outputs only 16x outputs
Rev3-4 74LVTH2245
Banks of 8 8x inputs, 8x outputs
Rev5+ 74LVTH162245 Sub-banks of 4 4x inputs, 12x outputs
Table 7.1:
High-speed
I/O
configuration options
Rev5+
hardware can either configure the banks of 8 pins as above,
or control sub-banks of 4 lines. For example to set pins D1-D4
(sub-bank 1A) as inputs and pins D5-D8 (sub-bank 1B) as outputs,
use the command:
EXTIO,MODE,1,HSB,READ,WRITE