Serial Interconnection Between Psoc 5Lp And Psoc 6 Mcu - Cypress CYW9P62S1-43012EVB-01 Manual

3.2.3

Serial Interconnection between PSoC 5LP and PSoC 6 MCU

In addition to the use as an onboard programmer, the PSoC 5LP device functions as an interface for
the USB-UART and USB-I2C bridges, as shown in
device are hard-wired to the I2C/UART pins of the PSoC 6 MCU. These pins are also available on
the Arduino-compatible I/O headers.
Figure 3-3. Schematics of Programming and Serial Interface Connections
MCU SWD KitProg3 Interface
KP_SWDIO
KP_SWCLK
RESET
KitProg3 I2C Interface
P6_VDD
KP_I2C_SCL
KP_I2C_SDA
KitProg3 UART Interface
UART_1_RX
UART_1_TX
B_UART_1_CTS
B_UART_1_RTS
CYW9P62S1-43012EVB-01 PSoC 62S1 Wi-Fi BT Pioneer Kit Guide, Doc. # 002-28722 Rev. *B
R37 0 OHM
TMS_SWDIO
R36 0 OHM
TCLK_SWCLK
R35 0 OHM
XRES_L_MCU
R133 4.7K
No Load
R134 4.7K
No Load
R58 0 OHM
P6_I2C_SCL
R59 0 OHM
P6_I2C_SDA
R61 0 OHM
ARD_D1
R116 0 OHM
IO1
No Load
R21 0 OHM
ARD_D0
R115 0 OHM
IO0
No Load
R19 0 OHM
ARD_D2
R18 0 OHM
ARD_D3
Figure 3-3. The USB-Serial pins of the PSoC 5LP
VTARG
I2C Pull-ups
R13 R14
4.7K 4.7K
KP_I2C_SCL
KP_I2C_SDA
Primary UART H/W Flow Control Level Translator
P5LP_VDD P5LP_VDD
C25 0.1uF
16V
U9
1
R135 100K
VCCA VCCB
3
No Load
A B
5
UART_1_RTS
DIR GND
74LVC1T45DW-7
C29 0.1uF
16V U10
1
VCCA VCCB
3
UART_1_CTS A B
5
DIR GND
74LVC1T45DW-7
Hardware
P6_VDD_BUF
C26 0.1uF
16V
6
4
B_UART_1_RTS
2
C28 0.1uF
16V
6
4
B_UART_1_CTS
2
R5 100K
32