SH7670 Datasheet, PDF (40/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 1 Overview
1.7 Pin Functions
Table 1.3 Pin Functions
Classification Symbol
Power supply Vcc
Vss
VccQ
VssQ
Clock
EXTAL
XTAL
CKIO
Operating
MD_BW
mode control
MD_CK1,
MD_CK0
System control RES
WDTOVF
I/O Name
Function
I Power supply
Power supply pin for the internal logic
circuit. All the Vcc pins must be
connected to the system power
supply. This LSI does not operate
correctly if there is a pin left open.
I Ground
Ground pin. All the Vss pins must be
connected to the system power supply
(0 V). This LSI does not operate
correctly if there is a pin left open.
I Power supply
Power supply pin for I/O pins. All the
VccQ pins must be connected to the
system power supply. This LSI does
not operate correctly if there is a pin
left open.
I Ground
Ground pin. All the VssQ pins must be
connected to the system power supply
(0 V). This LSI does not operate
correctly if there is a pin left open.
I External clock
Pin connected to a crystal resonator.
An external clock signal may also be
input to the EXTAL pin.
O Crystal resonator Pin connected to a crystal resonator
I/O System clock
Pin to supply the system clock to
external devices
I Mode set
Pin to set the operating mode. Do not
change signal levels on this pin during
operation.
I Clock mode set Pins to set the clock operating mode.
Do not change signal levels on these
pins during operation.
I Power-on reset This LSI enters the power-on reset
state when this signal goes low.
O Watchdog timer An overflow signal from the WDT is
overflow
output on this pin.
Rev. 1.00 Nov. 14, 2007 Page 14 of 1262
REJ09B0437-0100