Renesas Synergy™ Platform
Target Board Kit S1JA (TB-S1JA)
R12UM0025EU0101 Rev.1.01
Page 18 of 31
Apr.21.20
Figure 17. Reset Switch Circuit
Figure 18. Reset Switch (S2) on Target Board
5.4.6 PMOD A
A 12-pin PMOD type 2A connector is provided at PMOD A. The interface is
powered for 3.3 V modules only. The Main MCU acts as the SPI master, and the
connected module acts as an SPI slave device. This interface may additionally be
re-configured in firmware as several other PMOD types.
Signals on PMOD A are shared with the Main MCU pin header J2. Care must be
taken to ensure that shared signals are not used concurrently.
Table 7. PMOD A Connector (J5)
PMOD A Connector
TB-S1JA
Pin
Description
Signal/Bus
1
SS (low to select slave)
U1 P112, SSLA0_B (U1-36)
2
MOSI
U1 P303, MOSIA_B (U1-29)
3
MISO
U1 P304, MISOA_B (U1-28)
4
SCK
U1 P111, RSPCKA_B (U1-35)
5
GND
GND
6
VCC
+3V3
7
INT (slave to master)
U1 P301, IRQ5_A (U1-31)
8
RESET (master to slave)
U1 P015, GPIO (U1-52)
9
Not Specified
U1 P107, GPIO (U1-41)
10
Not Specified
U1 P106, GPIO (U1-42)
11
GND
GND
12
VCC
+3V3
Limits of the 3.3 V 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.