EM73866 Ver la hoja de datos (PDF) - ELAN Microelectronics
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EM73866 Datasheet PDF : 39 Pages
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EM73866
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
P19
32
10
IDME
SIDR
Initial value : 0000
IDME
01
**
Enable IDLE mode
Enable IDLE mode
Reserved
SIDR
00
01
10
11
Select IDLE releasing condition
P0(0..3), P2(0..3), P4(0..3), P5(0..3), P7.0, P8(0..2) pin input
P0(0..3), P2(0..3), P4(0..3), P5(0..3), P7.0, P8(0..2) pin input and 1 sec
signal (0.5 sec with frequency Double)
P0(0..3), P2(0..3), P4(0..3), P5(0..3), P7.0, P8(0..2) pin input and 0.5
sec signal (0.25 sec with frequency Double)
P0(0..3), P2(0..3), P4(0..3), P5(0..3), P7.0, P8(0..2) pin input and 15.
625 ms signal (7.8 ms with frequency Double)
STOP OPERATION MODE
The STOP operation mode suspends system operation and holds the internal status immediately before the
suspension with low power consumption. This mode will be released by reset or I/O pins (P0(0..3)/, P2 (0..
3), P4(0..3), P5(0..3), P7.0 or P8(0..2)).
LCD display and high speed timer/counter with melody output are disabled in STOP mode.
Initial value : 0000
P16 3 2 1 0
* SWWT Set wake up
Stop wake up time ( go to NORMAL )
* 100
2^9/XIN for RC osc.
* 101
2^10/XIN for RC osc.
* 110
2^18/XIN for Crystal osc.
* 111
2^19/XIN for Crystal osc.
TIME BASE INTERRUPT (TBI )
The time base can be used to generate a fixed frequency interrupt. There are 8 kinds of frequencies can be
selected by setting P25.
P25 3 2
P25
00x x
010 0
010 1
011 0
011 1
110 0
110 1
111 0
111 1
10x x
10
initial value : 0000
Interrupt Rate
Low-frequency
NORMAL mode
SLOW mode
disable
disable
LXIN / 23 Hz
Reserved
LXIN / 24 Hz
Reserved
LXIN / 25 Hz
Reserved
LXIN / 214 Hz
LXIN / 214 Hz
LXIN / 21 Hz
Reserved
LXIN / 26 Hz
LXIN / 26 Hz
LXIN / 28 Hz
LXIN / 28 Hz
LXIN / 210 Hz
LXIN / 210 Hz
Reserved
Reserved
With low-frequency double
NORMAL mode
SLOW mode
disable
disable
LXIN / 22 Hz
Reserved
LXIN / 23 Hz
Reserved
LXIN / 24 Hz
Reserved
LXIN / 213 Hz
LXIN / 213 Hz
LXIN / 2 Hz
Reserved
LXIN / 25 Hz
LXIN / 25 Hz
LXIN / 27 Hz
LXIN / 27 Hz
LXIN / 29 Hz
LXIN / 29 Hz
Reserved
Reserved
* This specification are subject to be changed without notice.
12.29.1999 16
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