HMS81008E Hynix Semiconductor, HMS81008E Datasheet - Page 11

• Manufacturer Part Number: HMS81008E
• Description: HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: Hynix Semiconductor

HMS81004E/08E/16E/24E/32E
5. PIN FUNCTION
V
V
TEST: Used for shipping inspection of the IC. For normal
operation, it should be connected to V
RESET: Reset the MCU.
X
the internal main clock operating circuit.
X
R00~R07: R0 is an 8-bit CMOS bidirectional I/O port. R0
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
R10~R17: R1 is an 8-bit CMOS bidirectional I/O port. R1
pins 1 or 0 written to the Port Direction Register can be
8
DD
SS
IN
OUT
: Circuit ground.
: Input to the inverting oscillator amplifier and input to
: Supply voltage.
: Output from the inverting oscillator amplifier.
DD
.
used as outputs or inputs.
In addition, R1 serves the functions of the various follow-
ing special features .
R20~R24: R2 is an 8-bit CMOS bidirectional I/O port. R2
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs .
Port pin
R11
R12
R14
R15
R16
R17
INT1 (External Interrupt input 1)
INT2 (External Interrupt input 2)
EC (Event Counter input )
T2 (Timer / Counter input 2)
T1 (Timer / Counter input 1)
T0 (Timer / Counter input 0)
Alternate function
JUNE 2001 Ver 1.00