Data Sheet

RN-42/RN-42-N Data Sheet
www.rovingnetworks.com DS-RN42-V3.2 6/21/2011
809 University Avenue • Los Gatos, CA 95032 • Tel [phone] • [e-mail]
~ 4 ~
Pin Description
Pin
Name
Description
Default
Voltage
1
GND
0V
2
SPI MOSI
Programming only
No Connect
3V
3
PIO6
Set BT master (HIGH=auto-master mode)
Input to RN42with weak pulldown
0V-3.3V
4
PIO7
Set Baud rate (HIGH = force 9600, LOW = 115K
or firmware setting)
Input to RN42 with weak pulldown
0V-3.3V
5
RESET
Active LOW reset
Input to RN42 with 1K pullup
6
SPI_CLK
Programming only
No Connect
7
PCM_CLK
PCM interface
No Connect
8
PCM_SYNC
PCM interface
No Connect
9
PCM_IN
PCM interface
No Connect
10
PCM_OUT
PCM interface
No Connect
11
VDD
3.3V regulated power input
12
GND
13
UART_RX
UART receive Input
Input to RN42
0V-3.3V
14
UART_TX
UART transmit output
High level output from RN42
0V-3.3V
15
UART_RTS
UART RTS, goes HIGH to disable host
transmitter
Low level output from RN42
0V-3.3V
16
UART_CTS
UART CTS, if set HIGH, disables transmitter
Low level input to RN42
0V-3.3V
17
USB_D+
USB port
Pull up 1.5K when active
0V-3.3V
18
USB_D-
USB port
0V-3.3V
19
PIO2
Status, HIGH when connected, LOW otherwise
Output from RN42
0V-3.3V
20
PIO3
Auto discovery = HIGH
Input to RN42 with weak pulldown
0V-3.3V
21
PIO5
Status, toggles based on state, LOW on connect
Output from RN42
0V-3.3V
22
PIO4
Set factory defaults
Input to RN42 with weak pulldown
0V-3.3V
23
SPI_CSB
Programming only
No Connect
24
SPI_MISO
Programming only
No Connect
25
GND
GND for RN42-N
26
RF Pad
RF Pad for RN42-N
27
GND
GND for RN42-N
30
AIO0
Optional analog input
Not Used
31
PIO8
Status (RF data rx/tx)
Output from RN42
0V-3.3V
32
PIO9
IO
Input to RN42 with weak pulldown
0V-3.3V
33
PIO10
IO (remote DTR signal)
Input to RN42 with weak pulldown
0V-3.3V
34
PIO11
IO (remote RTS signal )
Input to RN42 with weak pulldown
0V-3.3V
35
AIO1
Optional analog input
Not Used
1
2
3
4
5
6
7
8
9
10
11
12
GND
SPI MOSI
PIO6
PIO7
RESET
SPI_CLOCK
PCM_CLK
PCM_SYNC
PCM_IN
PCM_OUT
VDD
GND
24
23
22
21
20
19
18
17
16
15
14
13
SPI_MOSI
SPI_CSB
PIO4
PIO5
PIO3
PIO2
USB_D-
USB_D+
UART_CTS
UART_RST
UART_TX
UART_RX
RN-42
AIO1 GND PIO11 PIO10 PIO9 PIO8 GND AIO0
35 29 34 33 32 31 28 30
SPI_MISO
UART_RTS
1
2
3
4
5
6
7
8
9
10
11
12
GND
SPI MOSI
PIO6
PIO7
RESET
SPI_CLOCK
PCM_CLK
PCM_SYNC
PCM_IN
PCM_OUT
VDD
GND
24
23
22
21
20
19
18
17
16
15
14
13
SPI_MOSI
SPI_CSB
PIO4
PIO5
PIO3
PIO2
USB_D-
USB_D+
UART_CTS
UART_RST
UART_TX
UART_RX
RN-42-N
AIO1 GND PIO11 PIO10 PIO9 PIO8 GND AIO0
35 29 34 33 32 31 28 30
GND RF PAD GND
27 26 25
SPI_MISO
UART_RTS