Hardware User Manual
RFCOM Technologies
RTBTM01 BLE Module
Page 9
of 30
4.
RTBTM01
Pin Assignment
4.1 PIN Assignment
P in 1
P in 2
P in 3
P in 4
P in 5
P in 6
P in 7
P in 8
P in 9
P in 22
P in 21
P in 20
P in 19
P in 18
P in 17
P in 16
P
in
15
P
in
14
P
in
13
P
in
12
P
in
11
P
in
10
P
in
25
P
in
24
P
in
23
Figure 4-1
RTBTM01 Bottom view
4.2 PIN definition
Pin
Number
Pin Signal
Name
Default Setting
Alternative Function
1
VSS
GND
GND
2
VSS
GND
GND
3
P1
I/O
External interrupt input /RTC correction clock
(1 Hz) output
4
P2
I/O
Serial clock output, Timer Input/output
5
P3
I/O
I/O, Serial data input CSI20
6
P4
I/O
I/O, Serial data output CSI21
