HD6417705 Datasheet, PDF (320/739 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

9.2 Input/Output Pins
Table 9.1 lists the CPG pins and their functions.
Table 9.1 Clock Pulse Generator Pins and Functions
Pin Name
Symbol
I/O Description
Mode control pins MD0
I
Set the clock-operating mode.
MD1
I
Set the clock-operating mode.
MD2
I
Set the clock-operating mode.
Crystal oscillator XTAL
pins for system clock _EXTAL
(clock input pins)
O Connects a crystal resonator.
I
Connects a crystal resonator. Also used to input an
external clock.
Clock I/O pin
CKIO
I/O Inputs or outputs an external clock.
Crystal oscillator
pins for USB
(clock input pins)
XTAL_USB O
EXTAL_USB I
Connects a crystal resonator for the USB.
Connects a crystal resonator for the USB. Also used to
input an external clock.
Note: The values of the mode control pins are sampled only in a power-on reset. This can prevent
the erroneous operation of the LSI.
Rev. 2.00, 09/03, page 274 of 690