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PDF UPD784038YGK Data sheet ( Hoja de datos )

Número de pieza UPD784038YGK
Descripción 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
Fabricantes NEC 
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD784035Y,784036Y,784037Y,784038Y
16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
DESCRIPTION
The µPD784038Y is based on the µPD784038 with an I2C bus control function added, and is ideal for audio-visual
applications.
One-time PROM and EPROM versions, such as the µPD78P4038Y, that can operate in the same voltage range
as mask ROM versions, and various development tools are provided.
The functions are explained in detail in the following User’s Manual. Be sure to read this manual when designing
your system.
µPD784038, 784038Y Subseries User’s Manual - Hardware: U11316E
78K/IV Series User’s Manual - Instruction:
U10905E
FEATURES
78K/IV Series
Pin-compatible with µPD78234 Subseries,
µPD784026 Subseries, and µPD784038
Subseries
Higher internal memory capacity than µPD78234
Subseries and µPD784026 Subseries
Minimum instruction execution time: 125 ns
(@ 32-MHz operation)
I/O ports: 64
Serial interface: 3 channels
UART/IOE (3-wire serial I/O): 2 channels
CSI (3-wire serial I/O, 2-wire serial I/O, I2C bus):
1 channel
Timer/counter 16-bit timer/counter × 3 units 16-bit
timer × 1 unit
PWM output: 2 outputs
Standby function
HALT/STOP/IDLE mode
Clock division function
Watchdog timer: 1 channel
Clock output function
Selectable from fCLK, fCLK/2, fCLK/4, fCLK/8, and
fCLK/16
A/D converter: 8-bit resolution × 8 channels
D/A converter: 8-bit resolution × 2 channels
Supply voltage: VDD = 2.7 to 5.5 V
APPLICATION FIELDS
Cellular phones, cordless phones, audio-visual systems, etc.
Unless contextually excluded, references in this document to the µPD784038Y mean µPD784035Y, µPD784036Y,
and µPD784037Y.
The information in this document is subject to change without notice.
Document No. U10741EJ1V0DS00 (1st edition)
Date Published July 1997 N
Printed in Japan
The mark 5 shows major revised points.
©
1996

1 page




UPD784038YGK pdf
µPD784035Y, 784036Y, 784037Y, 784038Y
CONTENTS
1. DIFFERENCES AMONG MODELS IN µPD784038Y SUBSERIES ............................................. 7
2. MAJOR DIFFERENCES FROM µPD784026 SUBSERIES AND µPD78234 SUBSERIES ........ 8
3. PIN CONFIGURATION (TOP VIEW) ............................................................................................. 9
4. BLOCK DIAGRAM ......................................................................................................................... 11
5. PIN FUNCTION ............................................................................................................................... 12
5.1 Port Pins ................................................................................................................................................ 12
5.2 Non-Port Pins ....................................................................................................................................... 14
5.3 Types of Pin I/O Circuits and Connections for Unused Pins ........................................................ 16
6. CPU ARCHITECTURE ................................................................................................................... 19
6.1 Memory Space ...................................................................................................................................... 19
6.2 CPU Registers ...................................................................................................................................... 24
6.2.1 General-purpose registers ........................................................................................................ 24
6.2.2 Control registers ........................................................................................................................ 25
6.2.3 Special function registers (SFRs) ............................................................................................. 26
7. PERIPHERAL HARDWARE FUNCTIONS ...................................................................................... 31
7.1 Ports ....................................................................................................................................................... 31
7.2 Clock Generation Circuit ..................................................................................................................... 32
7.3 Real-Time Output Port ......................................................................................................................... 34
7.4 Timer/Counter ....................................................................................................................................... 35
7.5 PWM Output (PWM0, PWM1) .............................................................................................................. 37
7.6 A/D Converter ....................................................................................................................................... 38
7.7 D/A Converter ....................................................................................................................................... 39
7.8 Serial Interface ..................................................................................................................................... 40
7.8.1 Asynchronous serial interface/3-wire serial I/O (UART/IOE) .................................................. 41
7.8.2 Clocked serial interface (CSI) .................................................................................................... 43
7.9 Clock Output Function ........................................................................................................................ 44
7.10 Edge Detection Function .................................................................................................................... 45
7.11 Watchdog Timer ................................................................................................................................... 45
8. INTERRUPT FUNCTION ................................................................................................................ 46
8.1 Interrupt Sources ................................................................................................................................. 46
8.2 Vectored Interrupt ................................................................................................................................ 48
8.3 Context Switching ................................................................................................................................ 49
8.4 Macro Service ....................................................................................................................................... 49
8.5 Application Example of Macro Service ............................................................................................. 50
5

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UPD784038YGK arduino
µPD784035Y, 784036Y, 784037Y, 784038Y
4. BLOCK DIAGRAM
NMI
INTP0 to INTP5
INTP3
TO0
TO1
PROGRAMMABLE
INTERRUPT
CONTROLLER
TIMER/COUNTER0
(16 BITS)
INTP0
INTP1
INTP2/CI
TO2
TO3
TIMER/COUNTER1
(16 BITS)
TIMER/COUNTER2
(16 BITS)
TIMER3
(16 BITS)
P00 to P03
P04 to P07
PWM0
PWM1
ANO0
ANO1
AVREF2
AVREF3
ANI0 to ANI7
AVDD
AVREF1
AVSS
INTP5
REAL-TIME
OUTPUT PORT
PWM
D/A
CONVERTER
A/D
CONVERTER
78K/IV
CPU CORE
ROM
RAM
WATCHDOG
TIMER
UART/IOE2
BAUD-RATE
GENERATOR
UART/IOE1
BAUD-RATE
GENERATOR
CLOCKED
SERIAL
INTERFACE
CLOCK OUTPUT
BUS I/F
PORT0
PORT1
PORT2
PORT3
PORT4
PORT5
PORT6
PORT7
SYSTEM
CONTROL
Remark The internal ROM and RAM capacities differ depending on the model.
RxD/SI1
TxD/SO1
ASCK/SCK1
RxD2/SI2
TxD2/SO2
ASCK2/SCK2
SCK0/SCL
SO0/SDA
SI0
ASTB/CLKOUT
AD0 to AD7
A8 to A15
A16 to A19
RD
WR
WAIT/HLDRQ
REFRQ/HLDAK
P00 to P07
P10 to P17
P20 to P27
P30 to P37
P40 to P47
P50 to P57
P60 to P67
P70 to P77
RESET
TEST
X1
X2
VDD0, VDD1
VSS0, VSS1
11

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