EM73201
4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT
The RESET pin is a hysteresis input pin and has a pull-up resistor avavailable by mask option.
The simplest RESET circuit is connect RESET pin with a capacitor to VSS and a diode to VDD.
RESET
EM73201 I/O PORT DESCRIPTION :
Port
0
Input function
Output function
Note
E
Input port , wakeup function
1
--
E
with LED driving, P1.0 is shared with CLKOUT
2
--
--
3
--
--
Infrared signal control register
Infrared signal control register
4
--
I
I
5
--
6
--
Input port
Input port, external interrupt input
--
Output port
7
E
E
E
E
8
Output port
--
9
--
--
--
--
--
--
--
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
--
--
--
--
--
--
Sleep/Hold mode control register
I
I
--
--
--
--
WDT control register
--
--
--
Timebase control register
I
I
--
--
Timer/counter A control register
--
--
--
* This specification are subject to be changed without notice.
7.20.1999 20
ELAN [ ELAN MICROELECTRONICS CORP ]
