Hitachi AP1 Data Book page 268

HD614POSOS--------------------------------------------------------------
~
.5
c:
' e
:r
0
l'
6
T.!...:zJ - ~75°C
5
vcJ-5.~V-
~
4
..,'"
./
---
~
3
/
. / ~C
C- 4 . 5V
Ih /'
2
~
V
,I.
V
~~
",
1/
o
2 3 4 5
VCC-VOH(V)
-IOH min.
\II.
(Vcx:-VOH) characteristics
(RO - R2
pins)
• DESCRIPTION OF PIN FUNCTIONS
Input
and
output signals of MCU are described below.
• GND,
Vee, Vdl.,
These are power supply pins. Connect GND pin to Earth
(OV) and apply
Vee
power supply voltage to
Vee
pin. RAI/
V
diIp
pins are used for RAI
as
all high voltage pins are "with-
out pull-down MOS" (pMOS open drain).
• TEST
TEST
pin is not for users application. Connect it to
Vee.
• RESET
RESET pin is used to reset MCU. For details, see "RESET".
• OSCI, OSC2
These are input pins to the internal clock generator circuit.
They can be connected to crystal resonator, ceramic filter reso-
nator, or external oscillator circuit. For details, see "INTER-
NAL OSCILLATOR CIRCUIT."
• D-port
(Do
to 015)
D-port is a I-bit Input/Output common port.
Do
to Ih are
266
standard type, D4 to DIs are for high voltage. For details, see
"INPUT/OUTPUT".
• R-port eRO 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. iU2, R33, R40, R41, and R42 are also available
as INTo, INTI, SCK., SI and SO respectively. For details, see
"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 R32, 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.
SCI{,
SI and SO are also available as R40, R41, and R42 respec-
tively. For details, see "SERIAL INTERFACE".
• ROM MEMORY MAP
ROM memory map is illustrated in Fig. I and described in
the following paragraph.
• Vector Address Area ..... $0000 to $OOOF
When MCU 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 $OO3F
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 $1FFF