Renesas Synergy™ Platform
Target Board Kit S1JA (TB-S1JA)
R12UM0025EU0101 Rev.1.01
Page 19 of 31
Apr.21.20
5.4.7 PMOD B
A 6-pin PMOD type 4 connector is provided at PMOD B. The interface is powered for
3.3 V modules only. The Main MCU acts as the UART DCE, and the connected
module acts as the UART DTE. This interface may additionally be re-configured in
firmware as some other PMOD types.
Signals on PMOD B are shared with Main MCU pin header J1 and J2. Care must be
taken to ensure that shared signals are not used concurrently.
Table 8. PMOD B Connector (J6)
PMOD B Connector
TB-S1JA
Pin
Description
Signal/Bus
1
CTS (from module)
U1 P410, CTS0_A (U1-13)
2
TXD
U1 P411, TXD0_F (U1-12)
3
RXD
U1 P204, RXD0_C (U1-24)
4
RTS (from Main MCU)
U1 P401, GPIO (U1-2) (for RTS by Main MCU firmware)
5
GND
GND
6
VCC
+3V3
Limits of the 3.3V regulator on the Target Board, and limits of the power source supplying that regulator
(especially for USB Host devices), including the to-be-connected PMOD device, must be considered prior to
connecting a module to a PMOD connector.
5.4.8 User Capacitive Touch Button
A capacitive sensor region for use as a Capacitive Touch button is provided in the board
USER INPUT region. A support circuit, TSCAP, is required for proper operation of
Capacitive Touch button(s) by the Main MCU. To disconnect the Capacitive Touch Button
from the MCU, copper jumper E2 must be open. To connect MCU signal P001 to pin
header J3, copper jumper E5 must be closed.
Note: Capacitor C33 is optional. This design does not include a dielectric overlay, so C33 is added to
reduce the sensitivity of the Capacitive Touch Button. This capacitor is not required by the MCU
specification.
Table 9. Target Board Capacitive Touch Button Sensor
Designator
Function
MCU Control Port
MCU Pin
TS1
Capacitive Touch Button
U1 P001 (TS15)
U1-62
-
TSCAP Support
U1 P409 (TSCAP-E)
U1-14
Figure 19. Capacitive Touch Button Circuit