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PDF EM73P968 Data sheet ( Hoja de datos )
| Número de pieza | EM73P968 | |
| Descripción | 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT | |
| Fabricantes | ELAN Microelectronics Corp | |
| Logotipo |  |
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GENERAL DESCRIPTION
EM73P968
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
EM73P968 is an advanced single chip CMOS 4-bit one time programming (OTP) micro-controller. It contains
16K-byte ROM, 2.5K nibbles RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/
counters for the kernel function. EM73P968 also contains 6 interrupt sources, 1 input port, 8 bidirection ports, Max
LCD display (52x5), built-in watch-dog-timer and high speed Timer/Counter.
An analog to digital (A/D) converter having 8-bit multipler analog input and 8-bit resolution. Serial peripheral
interface (SPI).
EM73P968 has plentiful operating modes (SLOW, IDLE, STOP) intended to reduce the power consumption.
FEATURES
Operation voltage : 2.2V ~ 6V.
Clock source
: Dual clock system. Low-frequency oscillator is Crystal or RC oscillator (32K Hz,
connect an external resistor) by mask option and high-frequency oscillator is RC
(Connect an external resistor) or Crystall oscillator.
Instruction set
: 107 powerful instructions.
Instruction cycle time : Up to 2us for 4 MHz (high speed clock).
122 µs for 32768 Hz (low speed clock with frequency Double)
ROM capacity
: 16K x 8 bits.
RAM capacity
: 2.5K x 4 bits.
Input port
: 1 port, P0(0..3), IDLE/STOP releasing function are available by mask option.
Output port
: 9 pins (P17.0, P30, P31), P17.0, P30, P31 are shared with LCD pins.
Bidirection port
: 9 ports (P1, P2, P4, P5, P6, P7, P8, P11, P15). IDLE/STOP releasing function are
available by mask option for P8(0..3), P5 and P6 have high current sink.
12-bit timer/counter : Two 12-bit timer/counters are programmable for timer, event counter and pulse width
measurement.
A/D converter
: An analog to digital (A/D) converter having 8-bit multipler analog input and 8-bit
resolution.
SPI
: Serial peripheral interface.
Built-in watch-dog-timer : It is available by mask option.
Built-in time base counter : 22 stages.
Built-in high Speed Timer/Counter : Could be timer.
Subrountine nesting : Up to 13 levels.
Interrupt
: External . . . . . 2 input interrupt sources.
Internal . . . . . . 2 Timer overflow interrupts, 1 time base interrupt.
1 high speed counter overflow interrupt.
LCD driver
: 52 X 5 dots, 1/3 bias, 1/4 or 1/5 duty by mask option.
Power saving function : SLOW, IDLE, STOP operation mode.
Package type
: Chip form.
QFP 128 pin.
APPLICATIONS
EM73P968 is suitable for application in family applicance, consumer products, hand held games, calculator and
the toy controller.
* This specification are subject to be changed without notice.
8.14.2001 1
1 page  
SEG42
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
SEG49
SEG50
SEG51
VPP
ACLK/P0.0
PGM/P0.1
OE/P0.2
DCLK/P0.3
P1.0
P1.1
P1.2
P1.3
P2.0
P2.1
P2.2
P2.3
P4.0
P4.1
P4.2
P4.3
P5.0
P5.1
P5.2
P5.3
RESET
P6.0
P6.1
P6.2
P6.3
P7.0
P7.1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
102 SEG22
101 SEG21
100 SEG20
99 SEG19
98 SEG18
97 SEG17
96 SEG16
95 SEG15
94 SEG14
93 SEG13
92 SEG12
91 SEG11
90 SEG10
89 SEG9
88 SEG8
87 SEG7
86 SEG6
85 SEG5
84 SEG4
83 SEG3
82 SEG2
81 SEG1
80 SEG0
79 COM4
78 COM3
77 COM2
76 COM1
75 COM0
74 P15.3
73 P15.2
72 P15.1
71 P15.0
70 P11.3
69 P11.2
68 P11.1
67 P11.0
66 VRLC
65 VR3
5 Page 
EM73P968
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
PROGRAM EXAMPLE: Load the data of RAM address "143h" to RAM address "032h".
OUT #0001B,P9
; RAM bank1
LDL #3h
; LR← 3
LDH #4h
; HR← 4
LDAM
; Acc← RAM[134h]
OUT #0000B,P9
; RAM bank0
LDL #2h
; LR← 2
LDH #3h
; HR← 3
STAM
; RAM[023h]← Acc
(2) Direct addressing mode:
The address in the bank is directly specified by 8 bits code of the second byte in the instruction field.
instruction field
xxxx xxxx
P9(3..0)
RAM address
xxxx xxxx
PROGRAM EXAMPLE: Load the data of RAM address "143h" to RAM address "023h".
OUT #0001B,P9
LDA 43h
; Acc← RAM[143h]
OUT #0001B,P9
STA 23h
; RAM[023h]← Acc
(3) Zero-page addressing mode:
The zero-page is in the bank 0 (address 000h~00Fh). The address is the lower 4 bits code of the second byte
in the instruction field.
instruction field
yyyy
RAM address 00 00 0000 yyyy
PROGRAM EXAMPLE: Write immediate "0Fh" to RAM address "005h".
STD #0Fh, 05h
; RAM[05h]← 0Fh
* This specification are subject to be changed without notice.
8.14.2001 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM73P968.PDF ] | |
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