M30620FCAFP datasheet(565/615 Pages) RENESAS

565 / 615 page

External ROM

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

2-248

Table 5.2.2. Pin Description (2)

Signal name

Function

Pin name

I/O type

Input/output

Input

Input/output

I/O port P6

I/O port P7

I/O port P8

I/O port P85

I/O port P9

I/O port P10

P60 to P67

P70 to P77

P80 to P84,

P86,

P87,

P85

P90 to P97

P100 to P107

Output

Input

Output

Input

This is an 8-bit I/O port equivalent to P1. The port can be set to have or

not have a pull-up resistor in units of four bits by software. Pins in this

port also function as UART0 and UART1 I/O pins as selected by

software.

This is an 8-bit I/O port equivalent to P6. Pins in this port also function

as timer A0–A3, timer B5, or UART2 I/O pins as selected by software.

This is an 8-bit I/O port equivalent to P6. Pins in this port also function

as SI/O3,4 I/O pin, timer B0–B2 input pins, D-A converter output pins,

A-D converter’s extended input pins, or A-D trigger input pins as

selected by software.

This is an 8-bit I/O port equivalent to P6. Pins in this port also function

as A-D converter input pins. Furthermore, P104–P107 also function as

input pins for the key input interrupt function.

WRL / WR,

WRH / BHE,

RD,

BCLK,

HLDA,

HOLD,

ALE,

RDY

Output WRL, WRH (WR and BHE), RD, BCLK, HLDA, and ALE

signals. WRL and WRH, and BHE and WR can be switched using

software control.

WRL, WRH, and RD selecte

With a 16-bit external data bus, data is written to even addresses

when the WRL signal is “L” and to the odd addresses when the WRH

signal is “L”. Data is read when RD is “L”.

WR, BHE, and RD selected

Data is written when WR is “L”. Data is read when RD is “L”. Odd

addresses are accessed when BHE is “L”. Use this mode when using

an 8-bit external data bus.

While the input level at the HOLD pin is “L”, the microcomputer is

placed in the hold state. While in the hold state, HLDA outputs a “L"

level. ALE is used to latch the address. While the input level of the

RDY pin is “L”, the microcomputer is in the ready state.

P80 to P84, P86, and P87 are I/O ports with the same functions as P6.

Using software, they can be made to function as the I/O pins for timer

A4 and the input pins for external interrupts. P86 and P87 can be set

using software to function as the I/O pins for a sub clock generation

circuit. In this case, connect a quartz oscillator between P86 (XCOUT

pin) and P87 (XCIN pin). P85 is an input-only port that also functions

for NMI. The NMI interrupt is generated when the input at this pin

changes from “H” to “L”. The NMI function cannot be canceled using

software. The pull-up cannot be set for this pin.

WRL / WR,

WRH / BHE,

RD,

BCLK,

HLDA,

HOLD,

ALE,

RDY

M30620FCAFP Datasheet(PDF) 565 Page - Renesas Technology Corp

M30620FCAFP Datasheet(HTML) 565 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