RN4870/71 PICtail™/PICtail Plus
Daughter Board User’s Guide
DS500025
47A-page 4
6
2016 Microchip T
echnolo
gy Inc.
B.2
RN4870 PICtail SCHEMATIC
shows the schematic for the RN4870 PICtail™/PICtail Plus Daughter board.
FIGURE B-1:
RN4870 PICtail SCHEMATIC
t
RST
4
GP7/TxLED
5
GP6/RxLED
6
GP5
7
GP4
8
GP3
9
GP2
14
GP1/USB-CFG
15
GP0/SSPND
16
CTS
13
RTS
11
RX
12
TX
10
VDD
1
VS
S
20
OSC1
2
OSC2
3
D+
19
D-
18
VUSB
17
RST
GP7/T
G
G
xLED
GP6/R
G
G
xLED
R
R
GP5
G
G
GP4
GP3
GP2
GP1/U
G
G
SB-CFG
GP0/
G
G
SSPND
CTS
RTS
RX
TX
VDD
VS
S
OSC1
OSC2
D+
D-
VUSB
MCP2200
U10
GND
1
VIN
3
VOUT
2
MCP1700/3.3V
U2
4.7k
R29
1uF
10V
0402
C8
1uF
10V
0402
C10
1uF
10V
C27
1uF
16V
C17
1uF
16V
C28
12pF
50V
C19
12pF
50V
C21
0.1uF
16V
0603
C20
0.1uF
16V
C23
0.1uF
16V
0603
C24
123
4
JP5
1
2
3
4
JP7
11
2
JP6
11
2
JP8
1
1 2
JP12
1
1 2
JP13
1
2
3
4
5
6
7
8
JP10
1
1
2
3
4
5
6
HDR-2.54 Male 2x3
J1
1
1 2
3 4
5 6
7 8
J2
1
1 2
3 4
5 6
7 8
J3
1
1 2
3 4
5 6
7 8
J10
1
2
3
4
5
6
J4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
J8
BLUE
LED1
BAT
USB_3V3
PIC_3V3
VBAT
GND
BAT
USB_5V
GND
GND
GND
USB_3V3
P20
P36
P32
P33
P34
P07
RST_N
P31
PIC_3V3
GND
GND
P22
P24
HCI_TXD
HCI_RXD
P10
P23
P27
P11
P00
GND
D-
D+
USB_3V3
GND
GND
D+
D-
GND
USB_3V3
GND
GND
USB_3V3
GND
GND
CTS
RTS
RX
TX
GP0
GP1
GP2
GP0
GP1
GP2
GP3
GP4
GP5
GP6
GP7
P00
P36
HCI_TXD
HCI_RXD
RTS
CTS
TX
RX
VBAT
3V3_I2C
nRST
VBAT
P31
P32
P33
P34
GND
GND
GND
GND
GND
VBAT
VBAT
VBAT
GND
GND
GND
VB
AT
GND
RST_N
P13
P12
3V3_I2C
3V3_I2C
GND
3V3_I2C
GND
GND
PushLow
PushHigh
VBAT
PushHigh
PushLow
GND
VBAT
2
3
1
4
5
6
TACT DPST
SW6
P20
nRST
GND
USB_5V
GND
GND
P00
P10
P36
P20
P24
RST_N
VBAT
P22
VDD_IO
ULPC_O
P23
BK_O
P27
P11
P12
P13
P07
HCI_RXD
HCI_TXD
P31
P32
P33
P34
P35
P02
RB2/SS1/AN2
1
RF2/U1RX_E
2
RF6/SCK1
3
RF3/U1TX_E
4
RF7/SDI1_E
5
RG2/SCL1
6
RD0/RF8/SDO1_E
7
RG3/SDA1
8
GND
9
GND
10
RB0/AN0
11
RB1/AN1
12
RB3/AN3
13
RB4/AN4
14
GND
15
GND
16
RE9/INT2
17
RE8/INT1
18
RD14/U1CTS_E
19
RD15/U1RTS_E
20
3.3V
21
3.3V
22
5V
23
5V
24
9V
25
9V
26
RG0
27
RF0
28
RG1
29
RF1
30
J9
P31
P34
P33
P32
GND
P22
P24
P27
P36
P10
RST_N
GND
PIC_3V3
HCI_TXD
HCI_RXD
P35
P02
P20
P11
P00
P07
P23
GND
GND
11
2
3
4
5
6
7
8
9
HDR-2.54 Male 1x9
CN1
11
2
3
4
5
6
7
8
9
HDR-2.54 Male 1x9
CN3
1
1 2 3 4 5 6 7 8 9
HDR-2.54 Male 1x9
CN2
P02
P07
P35
P34
P33
P32
P31
HCI_TXD
HCI_RXD
VBAT
VDD_IO
P22
ULPC_O
P23
BK_O
P27
P1
1
P1
2
P1
3
P0
0
P1
0
P3
6
P2
0
P2
4
RS
T_
N
330R
R2
330R
R26
330R
R27
330R
R28
RED
LED6
USB_3V3
Coin Cell Battery CR2032
Power Source Option
PICTAIL Interface
Module Test Interface
USB to UART Converter
USB UART
USB GPIO
RESET Button
I2C Interface
I2C Power
I/O for I2C Reset
Serial Flash Interface
J4
P31
P32
P33
P34
P31
P32
P33
P34
J4
SPI_NCS
SPI_MISO
SPI_MOSI
SPI_SCLK
P20
ON
OFF
P20
ON
OFF
MODE
Test Mode
APP Mode
Configuration
Power Switch Test Button
Test Buttons
Connect to GPIO from JP7
manually for Button Test
(Push Low)
LED for I/O Test
VBAT/Ground Test Connector
1
2
DIP 1 SPST
SW7
2.2k
R10
10k
R20
2.2k
R11
2.2k
R13
47uF
16V
C12
SW1
SW2
SW3
SW4
SW5
SW8
300R
FB2
300R
FB1
4.7k
R8
4.7k
R25
470R
R21
1k
R24
1
3
12MHz
X1
Coin Cell
USB_3V3
PIC_3V3
USB RESET
RN4870 MODULE
1
2
3
4
5
6
7
8
9
10
HDR-2.54 Female 2x5
CN4
YELLOW
LED2
YELLOW
LED3
YELLOW
LED4
YELLOW
LED5
ID
4
VBUS
1
GND
5
D-
2
D+
3
0
USB2.0 Micro-B Female
P1
GND
1
GND
2
GND
3
VBAT
4
P2_2
5
VDD_IO
6
VDD_IO
7
ULPC_O
8
P2_3
9
BK_O
10
P1_1
12
P1_0
16
P3_6/RTS
17
P2_0/MODE
18
P2_4
19
NC
20
RST
21
UART_RX
22
UART_TX
23
P3_1
24
P3_2
25
P3_3
26
P3_4
27
P3_5
28
P0_7
29
P0_2
30
GND
31
GND
32
GND
33
P2_7/TX_IND
11
P1_2/SCL
13
P1_3/SDA
14
P0_0/CTS
15
RN4870
FP2
JR1
JR2
JR3
JR4
CR2032
1
2
SK1