Phychips RED4S User manual

RED4S User’s Manuals

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RED4S User’s Manuals - Preliminary Version
Contents
1 Pin Description .................................................................................................................................. 3
1.1 RED4S Pin Description ....................................................................................................................... 3
2 Operation Method .............................................................................................................................. 5
2.1 Power Supply ...................................................................................................................................... 5
2.2 UART ................................................................................................................................................... 5
2.3 RF In/Out ............................................................................................................................................. 7
2.4 GUI Control ......................................................................................................................................... 7
3 Specification .................................................................................................................................... 12

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RED4S User’s Manuals - Preliminary Version
1 Pin Description
17 18 19
VCC36
GND
NC
P01_TXD0
NC
NC
NC
NC
IS P_MO DE b
CSE
NC
P15
P16
P17
P12
NC
GND
GND
P00_RXD0
NC
NC
RESETb
SWCLK
SWDIO
GND
GND
GND
GND
GND
GND
VCC36P
VCC36P
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
GND
RFIO
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
14
Figure 1 Pin Description
1.1 RED4S Pin Description
No. Pin Name Description
1 VCC36 DC Power for Reader SOC
2 GND Ground
3 P04_SPI_TXD Quasi-bi directional I/O port or SPI Output
4 P05_SPI_RXD Quasi-bi directional I/O port or SPI Input
5 P06_SPI_CLK Quasi-bi directional I/O port or SPI Clock
6 P07_SPI_CS Quasi-bi directional I/O port or SPI Chip Select
7 ISP_MODEb
When ISP_MODEb is Logic ‘Low’, ISP mode is set as shown below table
Pin No. 7 12 11 10
MODE ISP_MODEb P17 P16 P15
Normal 1 GPIO/INT GPIO/INT GPIO/INT
UART ISP 0 0 0 0
SPI ISP 0 0 0 1
[CAUTION] Except ISP mode, ISP_MODEb should be set logic ‘High’ for
robust stability for FLASH memory
8 CSE Chip Select enable / module power enable 0:Disable 1: Enable
9 NC Not Connection
10 P15 Quasi-bi directional I/O port
[NOTE] This pin is already used internally. So this pin should be only for ISP mode
11 P16 Quasi-bi directional I/O port or External Interrupt 4

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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

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RED4S User’s Manuals - Preliminary Version
2 Operation Method (Installation guide for power supply)
to HOST
UART TXD
UART RXD
J1
1
2
J3
CON3
1
2
3
(optional)
U2
VIN
1
EN
2
VOUT 3
to HOST
VCC=3.3V
LDO
ENABLE
V_battery
V_battery
SW1
1 2
W
hen ENABLE is high, RED4S ON
RED4S
U1
RED4S
VCC36
1
GND1
2
GND10 26
GND9 25
P00_RXD0 35
P01_TXD0 34
NC7 31
NC1
3
NC2
4
NC3
5
NC4
6
NC5
9
NC6
14 P12
13
NC9 33
NC8 32
GND2
15
GND3
16
GND4
17
RF I/O
18
GND5
19
VCC36P 20
VCC36P 21
GND6 22
GND7 23
P15
10
P16
11
ISP_MODE
7
P17
12
SWDIO 28
SWCLK 29
RESET 30
CSE
8
GND11 27
GND8 24
RF_IO
SWDIO
SWCLK
P00_RXD0
P01_TXD0
P16
P12
P15
P17
(optional)
Figure 2 Application Circuit
(optional)
J1
BM24-10DP/2-0.35V
12 34 56 78 910 1112 1314
P01_TXD0 VCC36 VCC36 RESETb P00_RXD0
ISP_MODEb CSE
V_battery
VCC36P
SW1
1 2
U1
VIN 1
EN
2
VOUT
3
VCC=3.3V
ENABLE
V_battery
When ENABLE is hi
g
h, RED4S ON
to HOST
UART RXD
UART TXD
P16 P15 P17
GND GND
VCC36P
Figure 3 Application circuit: DC/Signal connector
2.1 Power Supply
DC power to operate RED4S is separated by 2 kinds. VCC36 is to supply for PR9200 which power range is
3.3 to 3.6 volts, VCC36P is to supply for power amp which power range is 3.3 to 4.2 volts.
In mobile device with battery, VCC36P can be connected to battery power directly. VCC36 pins need to
external LDO (or another device). As the Host control the LDO’s enable, user control power down mode of
module. If you do not control external LDO, you can control CSE pin to enter power down mode instead.
2.2 UART
The serial interface is assigned with two wires. RXD0, which pin is assigned to pin 35, is for receiving
command from host and TXD0, which pin is assigned to pin 34, is for transmitting response to host. Pin
connection is shown as below figure.

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RED4S User’s Manuals - Preliminary Version
Figure 4 Host MCU Connection
Following configuration is used for interfacing to USB transceiver.
Figure 5 USB transceiver Connection

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RED4S User’s Manuals - Preliminary Version
2.3 RF In/Out
RF I/O which assigned to Pin 18 is optimized with 50ohm impedance.
2.4 GUI Control
The RED Utility helps the user to start working with RED DK RFID reader quickly.
Follow below steps to run GUI.
Windows Start button  Program Menu  RED Utility_vX.X.X
Figure 6 RED Utility_vX.X.X

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RED4S User’s Manuals - Preliminary Version
2.4.1 Mode Change
RED Utility provides two view modes. User can select view mode depending on purpose of use between
Basic View Mode and Extended View Mode.
Figure 7 Basic View Mode
To change View Mode, click the extension button marked red in Figure 7 above.

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RED4S User’s Manuals - Preliminary Version
Figure 8 Extended View Mode
Always use Extended View Mode for measurement.
2.4.2 RED4S Connection
If hardware connection is valid, RED utility connect module REDx automatically.
If utility cannot connect hardware, please follow below step
Click “Connection->Connect” to connect to REDx-DK through USB-to-UART at main window
GUI will find the Device and synchronize parameters with REDx module automatically. If the GUI cannot find
the device automatically, Click “Connection->Port Setting” and select other Device. Default Baud rate is
115200 bit/s.
If the Device connected successfully, status bar will display “OPEN” state and device number and so on.

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RED4S User’s Manuals - Preliminary Version
2.4.3 Hardware Control
Click ‘H/W Control Tab.’ To control hardware.
2.4.3.1 Band(Region) Setting
To select operating band, band setting should be required. Select band in combo box and click Set button to
set operating band in group box ‘Frequency Control.’
2.4.3.2 Power Class Setting
Some countries classify channel number by power class. Click Get button and choose required power class.
And then click Set button to set finally.
.
2.4.3.3 Output Power setting
To set RED output power, select the Output Power combo box and click Set button.
2.4.3.4 CW (Continuous Wave) setting
It is only used for hardware debugging.
To set CW on, click Turn Tx CW on button. To set CW off, click Tx CW off button.