RN4677
2.2 External Configuration and
Programming
To configure the RN4677 module and program the
firmware, use the external configuration and
programming tool available from Microchip. Figure 2-2
shows the connections between the RN4677 and
header J1, a standard 8-pin 0.100" (2.54 mm) spaced
header. It is recommended to include this header on
the host PCB for development.
Configuration and firmware programming modes are
entered according to the system configuration I/O pins
as described in Table 1-5.
FIGURE 2-2:
EXTERNAL PROGRAMMING HEADER CONNECTIONS
RN4677 Module
J1
8 P24
7 GND
6 TXD
5 RXD
4 5V_USB NC
3 EAN
2 BAT_IN
1 P20
BAT_IN
GND
SW_BTN
LDO33_O
VDD_IO
LDO18_O
WAKEUP
PMULDO_O
P04
P15
P12/SCL
P13/SDA
LED1
P37
P36
P34
P33
P32
P31
TXD
RXD
DS50002370A-page 12
Advance Information
 2015 Microchip Technology Inc.