SH7616 datasheet(41/935 Pages) RENESAS

41 / 935 page

Section 1 Overview

Rev. 2.00 Mar 09, 2006 page 15 of 906

REJ09B0292-0200

1.3.2

Pin Functions

Table 1.2

Pin Functions

Type

Symbol

I/O

Name

Function

Power

VCC

Input

Power

For connection to the power supply.

Connect all VCC pins to the system power

supply. The chip will not operate if there

are any open pins

VSS

Input

Ground

For connection to ground. Connect all

VSS pins to the system ground. The chip

will not operate if there are any open pins

PVCC

Input

I/O circuit power Power supply for the I/O circuits

PVSS

Input

I/O circuit

ground

Ground for the I/O circuits

Clock

XTAL

Output

Crystal input/

output pin

For connection to a crystal resonator

EXTAL

Input

For connection to a crystal resonator, or

used as external clock input pin

CKIO

I/O

System clock

input/output

Used as the external clock input or

internal clock output pin

CKPREQ/

CKM

Input

Clock pause

request input

Used as the clock pause request pin for

changing the frequency of the clock input

from the CKIO pin, or halting the clock

CKPACK

Output

Clock pause

acknowledge

signal

Indicates that the chip is in the clock

pause state (standby state) internally

CKPO

Output

On-chip

peripheral clock

φ) output

Outputs the on-chip peripheral clock (P

φ)

PLLCAP1

Input

PLL capacitance

connection pins

Connects capacitance for operation of

PLL circuit 1

PLLCAP2

Input

Connects capacitance for operation of

PLL circuit 2

PLLVCC

Input

PLL power

PLL oscillator power supply

PLLVSS

Input

PLL ground

PLL oscillator ground

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