44
Pin
Signal
1
3.3 V
2
3.3 V
3
3.3 V
4
GND
5
A0
6
A1
7
A2
8
A3
9
GND
10
GND
Figure 7.2: High-speed digital IO connector (internal). Note that the
cable can be inserted upside-down, reversing the pin ordering.
Version
Driver
R 2
74LVT2244
R 3-4
74LVTH2245
R 5+
74LVTH162245
Table 7.1: High-speed
hardware can either configure the banks of 8 pins as above,
R 5+
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
Chapter 7. Digital I/O
Pin
Signal
Pin
11
A4
21
12
A5
22
13
A6
23
14
A7
24
15
GND
25
16
GND
26
17
B0
27
18
B1
28
19
B2
29
20
B3
30
Bank size
Example configuration
Outputs only
16x outputs
Banks of 8
8x inputs, 8x outputs
Sub-banks of 4
4x inputs, 12x outputs
I/O
configuration options
Signal
GND
GND
B4
B5
B6
B7
GND
GND
GND
GND
FFC
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