Input/Output Pins - Renesas RZ/A Series User Manual

RZ/A1L Group, RZ/A1LU Group, RZ/A1LC Group
6.2

Input/Output Pins

Table 6.1 lists the clock pulse generator pins and their functions.
Table 6.1 Pin Configuration and Functions of the Clock Pulse Generator
Pin Name
Mode control pin
Crystal input/output pins
(clock input pins)
Clock output pin
R01UH0437EJ0600 Rev.6.00
Jan 29, 2021
Symbol I/O
MD_CLK Input
MD_CLKS Input
XTAL Output
EXTAL Input
USB_X2 Output
USB_X1 Input
CKIO Output
Function
Switches between the EXTAL input and the USB_X1 input.
Enables or disables the SSCG circuit.
Connected to the crystal resonator. (Leave this pin open when the
crystal resonator is not in use.)
Connected to the crystal resonator or used to input external clock.
Connected to the crystal resonator. (Leave this pin open when the
crystal resonator is not in use.)
Connected to the crystal resonator or used to input external clock.
Clock output pin.
6. Clock Pulse Generator
6-4