r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 702

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 16 Clock Pulse Generator (CPG)
(9)
The module stop registers have control bits for running/stopping the individual peripheral
modules.
(10) Standby Control Register (STBCR)
The standby control register has bits for controlling the power-down modes.
16.2
Table 16.1 lists the CPG pin configuration.
Table 16.1 Pin Configuration and Functions of CPG
Note:
Rev. 1.00 Oct. 01, 2007 Page 636 of 1956
REJ09B0256-0100
Pin Name
MD0
MD1
MD2
MD8
XTAL
EXTAL
CLKOUT
Module Stop Registers 0, 1(MSTPCR0 and MSTPCR1)
For the guaranteed AC timing of the CLKOUT pin, refer to the section on electrical
characteristics. Pay attention to the relationship between the input frequency of the crystal
oscillator and the multiplication ratio.
Input/Output Pins
Function
Mode control pins 0,
1, 2
(Clock operating
mode)
Mode control pin 8
(Clock input mode)
Clock pins
I/O
Input
Input
Input
Input
Output
Input
Output
Description
Sets the clock operating mode after a power-on
reset.
Selects the use of the crystal resonator.
MD8 = low: External clock is input from the
MD8 = high: Crystal resonator is connected to the
A crystal resonator is connected.
A crystal resonator is connected, or an external
clock is input.
Used as an external bus clock output pin.
EXTAL pin.
EXTAL and XTAL pins.