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HMCS404CL--------------------------------------------------------------------------
30
Ta = -20 - +75°C
---. 20
«
E
c:
·E
10
o
b
~
If/v
ltv
1-1/
/v
~
V
~v
2
VCC=6V
V
7
V
/
VCC=5V
I Y
/
:;11
/ /
v
VCC=4V
L.:::-r-
v . . . . . .
/
1 1
VCC=2.7V
I - -
~
[.....---i--"
3
4
5
VCC-VOH (V)
-IOH
min. vs.
(VCC-VOH)
Characteristics
(D4
~
DIs
Pins)
• DESCRIPTION OF PIN FUNCTIONS
Input and output signals of MCU are described below.
• GND. Vee. Vdisp
These are Power Supply Pins. Connect GND pin to Earth
(OV) and apply Vee power supply voltage to Vee pin. V disp
is an power supply for high voltage Input/Output pins with
maximum voltage of Vcc-40V. Vdisp pin can be also used as
RA
1
pin by mask option. For details, see "INPUT/OUTPUT".
• TEST
TEST pin is not for user's application. TEST must be con-
nected to Vee.
•
RESET
RESET pin is used to reset MCU. For details, see "RESET".
• OSCI .OSC
2
These are Input pins to the internal oscillator circuit. They
can be connected to crystal, or ceramic filter resonator. For
details, see "INTERNAL OSCILLATOR CIRCUIT."
•
D-port (Do to
0
15 )
D-port is a I-bit Input/Output common port. Do to D3 are
standard type, D4 to DIS are for high voltage. Each pin has the
mask option to select its circuit type. For details, See "INPUT/
OUTPUT".
• R-port (RO to RA)
R-port is a 4-bit Input/Output port. (only RA is 2-bit con-
struction.) RO and R6 to R8 are output ports, R9 to RA are
input ports, and RI to RS are Input/Output common ports.
RO to R2 and RA are the high voltage ports, R3 to R9 are the
standard ports. Each pin has the mask option to select its cir-
cuit type. R32, R33, R40, R41 and R42 are also available as
INTo, INTI, SCK, SI and SO respectively. For details, see
344
6
5
c:
·E
3
:x:
o
"I
2
o
Ta=-20- +75"C
V
V
V
/ v
'/ V
f7 V
-
l----
/
V
/ V
/t:0
V
/~
I--
l -
I--
~
. . . . . v
I.---
lot
V
2
3
4
VCC-VOH (V)
1/
VCC=6V
V
VCC=5V
f--
VCC=4V
+--
VCC=2.7V
5
-IOH
min. vs.
(V CC- VOH)
Characteristics
(RO
~
R2
Pins)
"INPUT/OUTPUT" .
• INTo. INTI
These are the input pins to interrupt MCU operation exter-
nally. INTI can be used as an external event input pin for
TIMER-B. INTo and INTI are also available as R
32 ,
and R33
respectively. For details, See "INTERRUPT".
• SCK, SI. SO
These are Transfer clock I/O pin (SCK), serial data input pin
(SI) and serial data output pin (SO) used for serial interface.
SCK, SI, and SO are also available as
~o,
R41 and
~2
respec-
tively. For details, see "SERIAL INTERFACE".
•
ROM MEMORY MAP
MCU includes 4096 words x 10 bits ROM. ROM memory
map is illustrated in Fig. I and described in the following
paragraph.
• Vector Address Area ..... $0000 to $OOOF
When MCU is reset or an interrupt is serviced, the program is
executed from the vector address. Program the JMPL instruc-
tions branching to the starting addresses of reset routine or
of interrupt routines.
• Zero-Page Subroutine Area ..... $0000 to $003F
CAL instruction allows to branch to the subroutines in
$0000 to $003F.
• Pattern Area .....
$0000 to $OFFF
P instruction allows referring to the ROM data in
$0000
to
$OFFF as a pattern.
• Program Area ...... $0000 to $OFFF
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