Renesas RC22312A - Page 6

RC22312A/RC32312A Evaluation Board Manual
R31UH0022EU0100 Rev.1.00
Mar 28, 2023
Page 6
Item No. Name
On-Board
Connector Label
Function
5
CLKIN0/nCLKIN0 –
CLKIN3/nCLKIN3
J15, J24, J27, J37,
J39, J50, J59, J73
External clock input connectors for jitter attenuation
functionality.
6 OUT[3:0]
J13, J16, J18, J22,
J23, J27, J28, J33
SMA output test points.
7 OUT[7:4]
J35, J38, J40, J43,
J47, J51, J54, J58
SMA output test points.
8 OUT[11:8]
J60, J67, J70, J75,
J77, J79, J80, J83
SMA output test points.
9
DIP Switches
SW1
GPIO pull-up/down control.
10
VDD 5V Input Connector
J123
5V input supply to voltage regulators.
11
GND Connector
J125
Board ground for external supply.
12
Direct Supply Connector
J90
Voltage supply connector for direct pin supply.
13
I
2
C/SPI Pin Control Pull-up/down
Resistors
J244, J245, J246,
J247, J248
SDA_SDIO, SCL_SCLK, SDO_A1, NCS_A0, LOCK pin 10kΩ
to GND or VDDD33_SERIAL.
14
VDDXO_DCD, VDD_VCO,
VDDO0, VDDO1_FOD0, VDDO2,
VDDO3 Voltage Selection
J98, J100, J111,
J109, J107, J105
1.8V regulator jumper selection.
15
VDD_GPIO, VDDO4, VDDO5,
VDDO6, VDDO7, VDDO8_FOD1
Voltage Selection
J92, J103, J101,
J99, J97, J94
1.8V regulator jumper selection.
16
VDDO9, VDDO10_FOD2,
VDDO11, VDD_CLK,
VDDD33_DIA, VDDD33_SERIAL
Voltage Selection
J110, J108, J106,
J104, J102, J100
1.8/3.3V regulator jumper selection.
17 EEPROM Address Selection J74
EEPROM pins A1 and A2 pull-up/down to GND or
VDDD33_SERIAL.
18
EEPROM Socket
U5
8-pin dip EEPROM socket.
19
EEPROM WP
J71
Pull-up/down EEPROM write-protect pin.
20 FTDI I
2
C/SPI Controller U17
I
2
C/SPI control interface between PC and
RC22312A/RC32312A.
21
I
2
C/SPI Path Connection
J120
Combine or fanout SDI/SDO lines from the FTDI chip.
22
Level Translator Enable
J243
Enable/Disable I
2
C level translators.
23 I
2
C Pull-ups and Path Connectors J61, J62, J65, J66
Connect level translators SDA/SCLK to
RC22312A/RC32312A pins and pull-up to VDDD33_SERIAL.
24
Voltage Regulators
U13, U14, U15
Receive 5V input and supply 1.8/3.3V to EVB power domains.
25 FTDI Voltage Selection J259
Control FTDI voltage source between USB input and 5V board
supply.
26
I
2
C Pull-up Resistors
J117, J118
Pull-up to FTDI 3.3V
27 LDO Voltage Input Selection J124
Select EVB LDO input voltage source between bench or USB
supply.