I 2 C Bus (Inter-Ic Bus); Rs485 Interface - Renesas RZ/T2M User Manual

Renesas Starter Kit+ for RZ/T2M
5.18 I 2 C Bus (Inter-IC Bus)
The RZ/T2M features three I
EEPROM. Channel 0 of the IIC
for EtherCAT. Channel 1 of the IIC is connected to Pmod™ and Grove
Headers. Table 5-25 below details the connected device, and their connection to the MPU.
Signal Name
EEPROM_SCL (RIIC0)
EEPROM_SDA (RIIC0)
I2C_SCL_A (RIIC1)
I2C_SDA_A (RIIC1)
5.19

RS485 Interface

A RS485 transceiver IC is fitted to the RSK+ board and connected to the SCI MPU peripheral. Connection
information for the RS485 Interface header is provided in Table 5-26 below. The details of connecting to the
connected device and MPU are shown in Table 5-27 below.
Pin Circuit Net Name
1 NC
3 RS485_B
5 RS485_Z
7 NC
9 NC
Signal Name
RS485_RXD* 1
RS485_DE* 1
SCI_TXD
: This connection is a not available in the default RSK+ configuration - refer to section 6 for the required
*1
modifications.
R20UT4939EG0100 Rev. 1.00
Apr 20, 2022
2 C (Inter-IC Bus) interface modules.
is also multiplexed with I
Table 5-25: I 2
CLOCK
DATA
CLOCK
DATA
Table 5-26: RS485 Interface Header (CN12) Connections
RS485 Interface Header Connections
Table 5-27: RS485 Port Connections
SCI3 Receive Signal
SCI3 Driver Enable Signal
SCI3 Transmit Signal
Channel 0 of the IIC
C for EtherCAT and can also be used as EEPROM
2
C BUS Port Connections
Function
Pin Circuit Net Name
2 NC
4 RS485_Y
6 RS485_A
8 NC
10 NC
Function
5.
is connected to a 16Kbit
® , QWIIC ® , mikroBUS™, Application
MPU
Port
P20_5
P20_6
P22_6
P22_7
MPU
Port
P17_7
P04_5
P18_0
User Circuitry
Pin
F10
C10
E7
C6
Pin
G20
N1
H16
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