RN42 데이터 시트보기 (PDF) - Microchip Technology
부품명
상세내역
제조사
RN42 Datasheet PDF : 26 Pages
| |||
RN42/RN42N
TABLE 1-6: PIN DESCRIPTION
Pin Symbol
Type
Description
1
GND
Power
Ground reference
2
SPI_MOSI DI
(Optional) Factory diagnostic, programming and test. See Section 2.8 “SPI
Interface”.
3
GPIO6
DI
Set Bluetooth master.
If GPIO6 = high, module connects to the stored address.
If GPIO3 = high, module enters new Discovery/Pairing mode.
4
GPIO7
DIO
Set baud rate (high = force 9,600, low = 115K or firmware setting)
5
RESET
DI
Active-low Reset
6
SPI_CLK DI
7
PCM_CLK DIO
8
PCM_SYNC DIO
9
PCM_IN
DI
10 PCM_OUT DO
(Optional) Factory diagnostic and test. See Section 2.8 “SPI Interface”.
(Do not connect) PCM interface(1)
(Do not connect) PCM interface(1)
(Do not connect) PCM interface(1)
(Do not connect) PCM interface(1)
11 VDD
Power
Positive Supply
12 GND
Power
Ground reference
13 UART_RX DI
UART receive input
14 UART_TX DO
UART transmit output
15 UART_RTS DO
UART RTS, goes high to disable host transmitter
16 UART_CTS DI
UART CTS, if set high, it disables transmitter
17 USB_D+
DIO
USB port. 1.5K pullup activated when USB port is ready (~500 ms after reset).
18 USB_D-
DIO
USB port
19 GPIO2
DIO
Status, high when connected, low otherwise. See Section 2.3 “Connection
Status”.
20 GPIO3
DI
Auto-discovery mode = high.
If GPIO6 = high, module performs device enquiry scan searching for a device
with matching class of 0x55AA. If a device is found, the address of the device is
stored in the remote address field and auto-connects.
If GPIO6 = low, module enters Slave mode with special matching class of
0x55AA and waits for a master to discover it.
21 GPIO5
DIO
Status, toggles based on state, low on connect. See Section 2.3 “Connection
Status”.
22 GPIO4
DIO
Set factory defaults. See Section 2.2 “Factory Reset Using GPIO4”.
23 SPI_CSB DI
(Optional) Factory diagnostic and test. See Section 2.8 “SPI Interface”.
24 SPI_MISO DO
(Optional) Factory diagnostic and test. See Section 2.8 “SPI Interface”.
25 GND
Power
Ground reference (RN42N only)
26 RF ANT
AIO
Antenna, 50-Ohm impedance (RN42N only)
27 GND
Power
Ground reference (RN42N only)
28 GND
Power
Ground reference
29 GND
Power
Ground reference
30 AIO0
AIO
(Not used) Optional analog input
31 GPIO8
DO
UART TX/RX data activity
32 GPIO9
DIO
I/O
33 GPIO10
DIO
I/O (remote DTR signal)
34 GPIO11
DIO
I/O (remote RTS signal)
35 AIO1
AIO
(Not used) Optional analog input
Pin type abbreviation: A = Analog, D = Digital, I = Input, O = Output.
Note 1: Pin numbers 7 through 10 are reserved for future use.
DS50002328A-page 6
2015 Microchip Technology Inc.
Share Link: 