SH7014 Datasheet, PDF (48/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

1. SH7014/16/17 Overview
1.3.3 Pin Functions
Table 1.2 lists the pin functions.
Table 1.2 Pin Functions
Classification Symbol
I/O
Power supply V_CC
I
V_SS
I
Clock
PLLV_CC
I
PLLV
I
SS
PLLCAP
I
EXTAL
I
XTAL
I
CK
O
System control RES
I
WDTOVF O
Operating mode MD0 to MD3 I
control
FWP
I
Interrupts
NMI
I
Address bus
IRQ0 to
I
IRQ3,
IRQ6, IRQ7
A0 to A21 O
Name
Function
Supply
Connects to power supply.
Connect all V_CC pins to the system
supply. No operation will occur if
there are any open pins.
Ground
Connects to ground.
Connect all V_SS pins to the system
ground. No operation will occur if
there are any open pins.
PLL supply
On-chip PLL oscillator supply.
PLL ground
On-chip PLL oscillator ground.
PLL capacitance On-chip PLL oscillator external
capacitance connection pin.
External clock
Connect a crystal oscillator. Also, an
external clock can be input to the
EXTAL pin.
Crystal
Connect a crystal oscillator.
System clock
Supplies the system clock to
peripheral devices.
Power-on reset Power-on reset when low
Watchdog timer Overflow output signal from WDT
overflow
Mode set
Determines the operating mode. Do
not change input value during
operation.
Flash memory
write protect
Protects flash memory from being
written or deleted.
Non-maskable
interrupt
Non-maskable interrupt request pin.
Enables selection of whether to
accept on the rising or falling edge.
Interrupt requests Maskable interrupt request pins.
0 to 3, 6,7
Allows selection of level input and
edge input.
Address bus
Outputs addresses.
Rev.5.00 Sep. 27, 2007 Page 14 of 716
REJ09B0398-0500