SH7670 Datasheet, PDF (373/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 9 Clock Pulse Generator (CPG)
9.2 Input/Output Pins
Table 9.1 lists the clock pulse generator pins and their functions.
Table 9.1 Pin Configuration and Functions of the Clock Pulse Generator
Pin Name Symbol I/O
Function
(Clock
Operating
Mode 0)
Function
(Clock
Operating
Mode 1)
Mode
MD_ Input Sets the clock operating mode.
control pins CLK0
MD_ Input Sets the clock operating mode.
CLK1
Crystal
XTAL
input/output
pins (clock
input pins)
Output Connected to Leave this pin
the crystal
open.
resonator.
(Leave this pin
open when the
crystal
resonator is not
in use.)
EXTAL Input
Connected to
the crystal
resonator or
used to input
external clock.
Used as an
external clock
input terminal.
Clock
CKIO I/O
input/output
pin
Clock output
pin.
Clock output
pin
Function
(Clock
Operating
Mode 2)
Function
(Clock
Operating
Mode 3)
Leave this pin Leave this pin
open.
open.
Pull-up this pin. Pull-up this pin.
Clock input pin Clock output
pin
Rev. 1.00 Nov. 14, 2007 Page 347 of 1262
REJ09B0437-0100