Renesas R5S72621 Manual De Usuario
Section 5 Clock Pulse Generator
Page 118 of 2108
R01UH0134EJ0400 Rev. 4.00
Sep
24,
2014
SH7262 Group, SH7264 Group
5.2
Input/Output Pins
Table 5.1 lists the clock pulse generator pins and their functions.
Table 5.1
Pin Configuration and Functions of the Clock Pulse Generator
Pin Name
Symbol
I/O
Function
(Clock Operating Modes 0
and 2)
(Clock Operating Modes 0
and 2)
Function
(Clock Operating Modes 1
and 3)
(Clock Operating Modes 1
and 3)
Mode control pins MD_CLK0 Input
Sets the clock operating mode.
MD_CLK1 Input
Sets the clock operating mode.
Crystal
input/output pins
(clock input pins)
input/output pins
(clock input pins)
XTAL
Output Connected to the crystal
resonator. (Leave this pin
open when the crystal
resonator is not in use.)
open when the crystal
resonator is not in use.)
Leave this pin open.
EXTAL
Input
Connected to the crystal
resonator or used to input
external clock.
resonator or used to input
external clock.
Fix this pin (Connect it to
pull-up/down resistor,
power supply, or ground.)
pull-up/down resistor,
power supply, or ground.)
Clock output pin CKIO
Output Clock output pin.
Clock output pin
Crystal
input/output pins
for USB 2.0
host/function
module
(clock input pins)
input/output pins
for USB 2.0
host/function
module
(clock input pins)
USB_X1
Input
Connected to the crystal
resonator to input the clock
for the USB 2.0 host/function
module only, or used to
input external clock. When
the USB 2.0 host/function
module is not used, this pin
should be fixed (connected
to pull-up/down resistor,
power supply or ground).
resonator to input the clock
for the USB 2.0 host/function
module only, or used to
input external clock. When
the USB 2.0 host/function
module is not used, this pin
should be fixed (connected
to pull-up/down resistor,
power supply or ground).
Connected to the crystal
resonator to input the clock
for both the USB 2.0
host/function module and
the LSI, or used to input
external clock.
resonator to input the clock
for both the USB 2.0
host/function module and
the LSI, or used to input
external clock.
USB_X2
Output Connected to the crystal
resonator for the USB 2.0
host/function module.
(Leave this pin open when
the crystal resonator is not in
use.)
host/function module.
(Leave this pin open when
the crystal resonator is not in
use.)
Connected to the crystal
resonator for both the USB
2.0 host/function module
and the LSI.
(Leave this pin open when
the crystal resonator is not
in use.)
resonator for both the USB
2.0 host/function module
and the LSI.
(Leave this pin open when
the crystal resonator is not
in use.)