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Número de pieza | UPD784036 | |
Descripción | 16/8-BIT SINGLE-CHIP MICROCONTROLLER | |
Fabricantes | NEC | |
Logotipo | ||
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No Preview Available ! DATA SHEET
MOS INTEGRATED CIRCUIT
µPD784035(A), 784036(A)
16/8-BIT SINGLE-CHIP MICROCONTROLLER
The µPD784036(A) is a product of the µPD784038 sub-series in the 78K/IV series. A stricter quality assurance
program applies to the µPD784036(A) than the µPD784036 (standard product). In terms of the NEC quality, the
µPD784036(A) is classified as the special grade.
The µPD784036(A) contains various peripheral hardware such as ROM, RAM, I/O ports, 8-bit resolution A/D and
D/A converters, timers, serial interface, and interrupt functions, as well as a high-speed, high-performance CPU.
In addition, the µPD78P4038(A) (one-time PROM or EPROM product), which can be operated within the same
power supply voltage ranges as masked-ROM products, and development tools are supported.
For specific functions and other detailed information, consult the following user’s manual.
This manual is required reading for design work.
µPD784038, 784038Y Sub-Series User’s Manual, Hardware : U11316E
78K/IV Series User’s Manual, Instruction
: U10905E
FEATURES
• Higher reliability than the µPD784036 (Refer to Qual-
ity Grade on NEC Semiconductor Devices (Document
number C11531E).)
• Minimum instruction execution time: 125 ns
(at 32 MHz)
• Number of I/O ports: 64
• Timer/counters
16-bit timer/counter × 3 units
16-bit timer × 1 unit
• A/D converter: 8-bit resolution × 8 channels
• D/A converter: 8-bit resolution × 2 channels
• Standby function
HALT/STOP/IDLE mode
• PWM outputs: 2
• Serial interface: 3 channels
UART/IOE (3-wire serial I/O): 2 channels
CSI (3-wire serial I/O, 2-wire serial I/O): 1 channel
• Clock frequency division function
• Watchdog timer: 1 channel
• Clock output function
Selected from fCLK, fCLK/2, fCLK/4, fCLK/8, or fCLK/16
• Power supply voltage: VDD = 2.7 to 5.5 V
APPLICATIONS
Controllers for automobile electronic control systems, gas detector circuit-breakers, various types of safety
equipment, etc.
This manual describes the µPD784036(A) unless otherwise specified.
The information in this document is subject to change without notice.
Document No. U13010EJ1V0DS00 (1st edition)
Date Published December 1997 J
Printed in Japan
©
1997
1 page µPD784035(A), 784036(A)
CONTENTS
1. DIFFERENCES BETWEEN µPD784038 SUB-SERIES SPECIAL PRODUCTS .................... 7
2. DIFFERENCES BETWEEN STANDARD AND SPECIAL PRODUCTS .................................. 7
3. PIN CONFIGURATION (TOP VIEW) ......................................................................................... 8
4. BLOCK DIAGRAM ..................................................................................................................... 10
5. LIST OF PIN FUNCTIONS ......................................................................................................... 11
5.1 Port Pins ............................................................................................................................................ 11
5.2 Non-Port Pins ................................................................................................................................... 13
5.3 I/O Circuits for Pins and Handling of Unused Pins .................................................................... 15
6. CPU ARCHITECTURE ............................................................................................................... 18
6.1 Memory Space .................................................................................................................................. 18
6.2 CPU Registers .................................................................................................................................. 21
6.2.1 General-purpose registers ................................................................................................ 21
6.2.2 Control registers ................................................................................................................ 22
6.2.3 Special function registers (SFRs) .................................................................................... 23
7. PERIPHERAL HARDWARE FUNCTIONS ................................................................................ 28
7.1 Ports ................................................................................................................................................... 28
7.2 Clock Generator ............................................................................................................................... 29
7.3 Real-Time Output Port ..................................................................................................................... 31
7.4 Timers/Counters ............................................................................................................................... 32
7.5 PWM Output (PWM0, PWM1) .......................................................................................................... 34
7.6 A/D Converter ................................................................................................................................... 35
7.7 D/A Converter ................................................................................................................................... 36
7.8 Serial Interface ................................................................................................................................. 37
7.8.1 Asynchronous serial interface/three-wire serial I/O (UART/IOE) ................................ 38
7.8.2 Synchronous serial interface (CSI) .................................................................................. 40
7.9 Clock Output Function .................................................................................................................... 41
7.10 Edge Detection Function ................................................................................................................ 42
7.11 Watchdog Timer ............................................................................................................................... 42
8. INTERRUPT FUNCTION ............................................................................................................ 43
8.1 Interrupt Source ............................................................................................................................... 43
8.2 Vectored Interrupt ............................................................................................................................ 45
8.3 Context Switching ............................................................................................................................ 46
8.4 Macro Service ................................................................................................................................... 46
8.5 Examples of Macro Service Applications ..................................................................................... 47
5
5 Page µPD784035(A), 784036(A)
5. LIST OF PIN FUNCTIONS
5.1 Port Pins (1/2)
Pin
P00-P07
P10
P11
P12
P13
P14
P15-P17
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34-P37
P40-P47
P50-P57
I/O
I/O
I/O
Input
I/O
I/O
I/O
Dual-function
Function
- Port 0 (P0):
• 8-bit I/O port.
• Functions as a real-time output port (4 bits × 2).
• Inputs and outputs can be specified bit by bit.
• The use of the pull-up resistors can be specified by software for the pins
in input mode together.
• Can drive a transistor.
PWM0
Port 1 (P1):
PWM1
• 8-bit I/O port.
ASCK2/SCK2
• Inputs and outputs can be specified bit by bit.
RxD2/SI2
TxD2/SO2
-
• The use of the pull-up resistors can be specified by software for the pins
in input mode together.
• Can drive LED.
NMI Port 2 (P2):
INTP0
• 8-bit input-only port.
INTP1
INTP2/CI
INTP3
INTP4/ASCK/SCK1
• P20 does not function as a general-purpose port (nonmaskable
interrupt). However, the input level can be checked by an interrupt
service routine.
• The use of the pull-up resistors can be specified by software for pins
P22 to P27 (in units of 6 bits).
INTP5
• The P25/INTP4/ASCK/SCK1 pin functions as the SCK1 output pin by
SI0 CSIM1.
RxD/SI1
Port 3 (P3):
TxD/SO1
• 8-bit I/O port.
SCK0/SCL
• Inputs and outputs can be specified bit by bit.
SO0/SDA
TO0-TO3
• The use of the pull-up resistors can be specified by software for the pins
in input mode together.
AD0-AD7
Port 4 (P4):
• 8-bit I/O port.
• Inputs and outputs can be specified bit by bit.
• The use of the pull-up resistors can be specified by software for the pins
in the input mode together.
• Can drive LED.
A8-A15
Port 5 (P5):
• 8-bit I/O port.
• Inputs and outputs can be specified bit by bit.
• The use of the pull-up resistors can be specified by software for the pins
in the input mode together.
• Can drive LED.
11
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet UPD784036.PDF ] |
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