M30622 Mitsubishi, M30622 Datasheet - Page 10

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Pin Description
Pin Description
Note 1: In M30623(80-pin package), the following signals do not have the corresponding external pin.
Note 2: The M16C/62T group is not guaranteed to operate in memory expansion and microprocessor modes.
_________ _______
__________
________
P4
CS
P5
________ ______
WRL/WR,
WRH/BHE,
RD,
BCLK,
HLDA,
__________
HOLD,
ALE,
RDY
P6
P7
P8
P8
P8
P8
P9
P10
______
Pin name
0
0
0
0
0
6
7
5
0
A
0
,
,
0
to P4
16
to P5
to P6
to P7
to P8
to P9
to CS
to P10
Tentative Specifications REV.A
to A
______
S
7
7
7
7
4
7
3
,
pecifications in this manual are tentative and subject to change.
19
,
7
P1
P4
P7
P9
I/O port P4
I/O port P6
I/O port P7
I/O port P8
I/O port P8
I/O port P9
I/O port P10
I/O port P5
Signal name
0
4
2
1
/D
/CS0 to P4
/CLK
/TB1
_______
8
to P1
IN
2
/TA1
/S
5
IN3
4
/D
OUT
7
/CS3
12
_______
Input/output
Output
Output
Input/output
Output
Output
Output
Output
Output
Input
Output
Input
Input/output
Input/output
Input/output
Input/output
Input/output
Input
Input/output
Input/output
, P1
/V, P7
I/O type
5
/D
3
13
/CST
________ ________
/INT
_______
2
3
/RTS
This is an 8-bit I/O port equivalent to P0.
These pins output CS
chip select signals used to specify an access space. A
high-order address bits.
This is an 8-bit I/O port equivalent to P0. In single-chip mode, P5
this port outputs a divide-by-8 or divide-by-32 clock of X
of the same frequency as X
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.
This is an 8-bit I/O port equivalent to P0. 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 P0 (P7
open-drain output). Pins in this port also function as timer A
timer B5 or UART2 I/O pins as selected by software.
P8
Using software, they can be made to function as the I/O pins for
timer A4 and the input pins for external interrupts. P8
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
P8
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
cancelled using software. The pull-up cannot be set for this pin.
This is an 8-bit I/O port equivalent to P0. Pins in this port also
function as SI/O 3, 4 I/O pins, timer B0–B4 input pins, D-A converter
output pins, A-D converter extended input pins, or A-D trigger input
pins as selected by software.
This is an 8-bit I/O port equivalent to P0. Pins in this port also
funciton as A-D converter input pins. Furthermore, P10
function as input pins for the key input interrupt function.
to P1
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”.
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.
________
WRL, WRH, and RD selected
______
WR, BHE, and RD selected
0
6
to P8
2
(X
/TA1
_______
7
COUT
/D
_______
10
________
________
________
4
15
IN
, P8
/INT
/V, P7
________
_______
pin) and P8
__
6
________
5
and P8
_____
4
_________
_______
/TA2
_____
______
______
7
0
______
–CS
OUT
are I/O ports with the same functions as P0.
7
______
(X
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
CIN
/W, P7
3
CIN
Function
__________
_______
_______
signals and A
_______
as selected by software.
pin). P8
_______
5
/TA2
_____
______
_____
IN
5
Mitsubishi microcomputers
is an input-only port that
/W
___
0
_______
and P7
16
–A
M16C / 62T Group
19
__________
__________
. CS
1
_____
_______ _______
6
are N channel
16
and P8
IN
4
–P10
0
–A
–CS
or a clock
19
7
0
7
3
are 4
–A
also
can
are
7
in
3
,