Phychips RED4S, User Manual

Page: 4 / 14

2 March 2018 4 of 14
RED4S User’s Manuals - Preliminary Version
12 P17 Quasi-bi directional I/O port or External Interrupt 5
13 P12_SCL
Quasi-bi directional I/O port I2C Clock
The pull-up resistor is always switched on.
Reserved Address : 0x70, 0x71
14 P11_SDA
Quasi-bidirectional I/O port I2C Data In / Out
The pull-up resistor is always switched on.
Reserved Address : 0x70, 0x71
15 GND Ground
16 GND Ground
17 GND Ground
18 RF IO Rx Input / Tx Output
19 GND Ground
20 VCC36P DC Power for Power Amp
21 VCC36P DC Power for Power Amp
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground
26 GND Ground
27 GND Ground
28 SWDIO Serial Wire Debug data in out
29 SWCLK Serial Wire Debug Clock
30 RESETb Reader SOC Reset signal 0: reset
31 NC Not Connection
32 NC Not Connection
33 NC Not Connection
34 P01_TXD0 Quasi-bi directional I/O port or UART0 Output
35 P00_RXD0 Quasi-bi directional I/O port or UART0 Input