SH7261 Datasheet, PDF (48/1348 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 1 Overview
Classification
Power supply
Symbol
PLLVCC
PLLVSS
Clock
EXTAL
XTAL
CKIO
Operating mode MD1, MD0
control
MD_CLK1,
MD_CLK0
ASEMD
System control RES
MRES
WDTOVF
ASEBRKAK
ASEBRK*
I/O Name
Function
I
Power supply for Power supply for the on-chip PLL
PLL
oscillator. This LSI does not operate
correctly if this pin is left open.
I
Ground for PLL Ground pin for the on-chip PLL
oscillator. This LSI does not operate
correctly if this pin is left open.
I
Crystal resonator/ Pin connected to a crystal resonator.
O ^{external clock An external clock signal may also be}
input to the EXTAL pin.
I/O System clock I/O Input pin for an external clock or
output pin for supplying the system
clock to external devices
I
Mode set
Pins to set the operating mode. Do
not change signal levels on these
pins during operation.
I
Clock mode set Pins to set the clock operating mode.
Do not change signal levels on these
pins during operation.
I
Debugging mode This pin is valid when the E10A-USB
emulator is in use. Otherwise, fix the
signal level on this pin high.
I
Power-on reset This LSI enters the power-on reset
state when this signal goes low.
I
Manual reset
This LSI enters the manual reset
state when this signal goes low.
O Watchdog timer An overflow signal from the WDT is
overflow
output on this pin.
O Break mode
acknowledge
Indicates that the E10A-USB
emulator has entered its break
mode.
I
Break request E10A-USB emulator break input pin
Rev. 2.00 Sep. 07, 2007 Page 16 of 1312
REJ09B0320-0200