EM73PA88A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
P16
3
2
1
0
Initial value : 0000
*
SPME
SWWT
SPME
Enable STOP mode
Enable STOP mode
no function
SWWT Set wake-up warm-up time
1
0
0
0
1
1
0
1
0
1
214/LXIN
210/LXIN
212/LXIN
no function
TIME BASE INTERRUPT (TBI )
The time base can be used to generate a single fixed frequency interrupt. Eight types of frequencies can be
selected with the "P25" setting.
P25
3
2
1
0
initial value : 0000
P25
DUAL operation mode
Interrupt disable
SLOW operation mode
Interrupt disable
Reserved
Reserved
Reserved
Interrupt frequency LXIN / 214 Hz
Reserved
Interrupt frequency LXIN / 26 Hz
Interrupt frequency LXIN / 28 Hz
Interrupt frequency LXIN / 210 Hz
Reserved
0 0 x x
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
1 0 x x
Interrupt frequency LXIN / 23 Hz
Interrupt frequency LXIN / 24 Hz
Interrupt frequency LXIN / 25 Hz
Interrupt frequency LXIN / 214 Hz
Interrupt frequency LXIN / 21 Hz
Interrupt frequency LXIN / 26 Hz
Interrupt frequency LXIN / 28 Hz
Interrupt frequency LXIN / 210 Hz
Reserved
TIMER / COUNTER ( TIMERA, TIMERB)
Timer/counters support three special functions:
1. Even counter
2. Timer.
3. Pulse-width measurement.
These three functions can be executed by 2 timer/counter independently.
With timerA, the counter data is saved in timer register TAH, TAM, TAL. User can set counter initial
value and read the counter value by instruction "LDATAH(M,L)" and "STATAH(M,L)". With timer B
register is TBH, TBM, TBL and the W/R instruction are "LDATBH (M,L)" and "STATBH (M,L)".
The basic structure of timer/counter is composed by two identical counter module, these two modules can
be set initial timer or counter value to the timer registers, P28 and P29 are the command registers for timerA
and timer B, user can choose different operation modes and internal clock rates by setting these two
registers. When timer/counter overflows, it will generate a TRGA(B) interrupt request to interrupt control
unit.
* This specification are subject to be changed without notice.
10.8.2001
19
ELAN [ ELAN MICROELECTRONICS CORP ]
