32182 datasheet(36/755 Pages) RENESAS

36 / 755 page

1-9

OVERVIEW

32182 Group User’s Manual (Rev.1.0)

1.3 Pin Functions

Table 1.3.1 Description of Pin Functions (1/5)

Type

Pin Name

Signal Name

Input/Output Description

Power supply

VCCE

Main power supply

–

Power supply for the device (5.0 V ± 0.5 V or 3.3 V ± 0.3 V).

EXCVCC

Internal power supply –

This pin connects an external capacitor.

VCC-BUS

Bus power supply

–

Power supply for the bus control pins (5.0 V ± 0.5 V or 3.3 V

± 0.3 V).

VDDE

RAM power supply

–

Backup power supply for the internal RAM (5.0 V ± 0.5 V or

3.3 V ± 0.3 V).

EXCVDD

Internal power

–

This pin connects an external capacitor for the internal power

supply of RAM

supply of the internal RAM.

VSS

Ground

–

Connect all VSS pins to ground (GND).

Clock

XIN,

Clock input

Input

These are clock input/output pins. A PLL-based ×8 frequency

XOUT

Clock output

Output

multiplier is included, which accepts as input a clock whose

frequency is 1/8 of the internal CPU clock frequency. (XIN

input is 10 MHz when f(CPUCLK) = 80 MHz.)

BCLK

System clock

Output

This pin outputs a clock whose frequency is twice that of the

external input clock (XIN). (BCLK output is 20 MHz when

f(CPUCLK) = 80 MHz.) Use this clock to synchronize the

operation of external devices.

OSC-VCC

Clock power supply

–

Power supply for the oscillator circuit. Connect OSC-VCC to

the main power supply.

OSC-VSS

Clock ground

–

Connect OSC-VSS to ground.

VCNT

PLL control

–

Connect a resistor and capacitor for control of the PLL circuit.

Reset

RESET#

Reset

Input

Reset input pin for the internal circuit.

Mode

MOD0,

Mode

Input

Set the microcomputer’s operation mode.

MOD1

MOD0

MOD1

Mode

Single-chip mode

External extension mode

Processor mode

(Boot mode) (Note 1)

(Settings inhibited)

Flash protect

Input

This special pin protects the flash memory against rewrites

in hardware.

Address bus

A11–A30

Address bus

Output

Twenty address lines (A11–A30) are included that support

up to 2 MB of memory space per chip select. However, A11

and A12 are shared with CS#2 and CS#3, respectively.

A31 is not output.

Note 1: Boot mode requires that the FP pin should be at the high level. For details about boot mode, see Chapter 6, “Internal

Memory.”

32182 Datasheet(PDF) 36 Page - Renesas Technology Corp

32182 Datasheet(HTML) 36 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL