V850 family
Product Letter
Description
V853
32-bit RISC Microcontrollers
The single-chip V853 microcontroller is a member of NEC’s 32-bit RISC V850 family.
It integrates CPU, ROM, RAM and peripheral functions on chip. The internal bus is 32 bits
wide, the external bus 16 bits wide. Controller memory options are listed in Table 1.
Applications
Like other V850 series controllers, the V853 device is used for real-time control
applications, such as servo motor control in computer peripherals and machine tools, for
engine management control, consumer electronics and multimedia. Flash memory, a variety
of serial communication channels and AD/DA converters make it the perfect choice for
compact communication terminals and complete control systems. Typical benefits of Flash
memory are individually programmed devices in the final production process and field
upgradability. With their low power consumption and power-saving modes, V853 devices
are also ideal for portable applications.
Features
• Small 32-bit RISC CPU core
• 30 ns minimum instruction execution time
(33 MHz max. clock)
• 16-Mbyte linear address space
• 1-Mbyte external address space
• 32 general-purpose registers
• 74 instructions optimized for embedded
control
• DSP functionality with 16-bit multiplication
and saturation logic in a single clock cycle
•
•
•
•
•
•
•
•
•
•
Up to 8 Kbytes internal RAM
Interrupt controller
Real-time pulse unit/timers
Serial interface with baud rate generator
A/D and D/A converters
PWM
Clock generator
Power save functions
Mask ROM, Flash versions
100-pin LQFP package
Block Diagram
NMI
INTP
Interrupt
Controller
ROM
Mask
96/128
Kbytes
or Flash
128/256
Kbytes
CPU Core
PC
Instruction
Queue
ASTB
DSTB
Barrel Shifter
Hardware
Multiplier
16 x 16
> 32
R/W
Bus
Control
Unit
UBEN
LBEN
WAIT
A16-A19
AD0-AD15
HLDRQ
HLDAK
TI
TO
TCLR1
Timer/Counter
16-bit timer:
5 channels
System
Registers
SIO
SO0/TxD0
SI0/RxD0
SCK0
SO1/TxD1
SI1/RxD1
SCK1
SO2
SI2
SCK2
SO3
SI3
SCK3
UART/CSI
BRG
UART/CSI
BRG
CSI
BRG
CSI
AV
DD
AV
REF1
A/D Converter
PWM
PWM
AV
SS
ADTRG
ANI1-ANI7
RAM
4 Kbytes/
8 Kbytes
General
Registers
A
L
U
Internal Peripheral Bus
CKSEL
Oscillator and
Clock Generator
CLK
OUT
X1
X2
System Control
MODE
RESET
P0-11
ANO
Ports
D/A Converter
AV
REF
Functional Block Description
CPU
The internal CPU, based on Harvard architechture, is a very compact 32-bit RISC engine.
Most instructions are executed in a single clock cycle under control of a 5-stage pipeline.
It also includes a 16 x 16-bit hardware multiplier with 32-bit result and saturation logic. A
32-bit barrel shifter and bit manipulation instructions accelerate complex bit operations.
Bus Control Unit
(BCU)
The BCU initiates the bus cycles based on the physical addresses generated by the CPU.
When an instruction stored in external memory is executed and no bus cycle initiation is
requested by the CPU, the BCU creates a prefetch address to prefetch an instruction code
which is then inserted in the internal instruction queue.
RAM
The internal RAM, with a capacity of 4 or 8 Kbytes, is mapped from address FFFFE000H.
The CPU can access any data in one clock cycle.
ROM
The internal ROM (96 or 128 Kbytes) or Flash ROM (128 or 256 Kbytes) is mapped from
00000000H. The CPU can access any instruction from the ROM/Flash ROM in one clock cycle.
PROM Programming
Ports
Interrupt Controller
The Flash memory can be written and erased electrically.
The V853 has 67 input/output port pins that can be used alternatively as control pins.
The interrupt controller handles the interrupt request issued by internal peripheral
hardware and external sources. Up to 8 interrupt priority levels can be specified for each
interrupt request.
Clock Generator
The clock generator produces the CPU operating clock. The internal frequency can be
selected as 5x or 1x of crystal frequency by using the internal PLL or 1/2x crystal frequency
without PLL. An external clock can be used instead of the clock generator. A clock-out
signal is available.
Real-time Pulse
Unit (RPU)/Timers
Serial Interface
The RPU includes a 5-channel 16-bit timer/counter unit.
The serial interface includes two channels of CSI (Clocked Serial Interface) and two channels
which can be operated in the UART (Asynchronous Serial Interface) or the CSI mode. The
UART transfers data via the TxD and RxD pins. The baud rate is determined by the on-chip
dedicated baud rate generator. The CSI transfers data via the SO, SI and SCK pins at a baud
rate determined by the on-chip dedicated baud rate generator or an external clock.
A/D Converter
An 8-channel A/D converter with 10-bit resolution and a 2-channel 8-bit D/A converter are
integrated.
PWM
A 2-channel PWM unit with different operating modes is available on chip.
V853
32-bit RISC Microcontrollers
Ordering Information
Devices
Part Number
µPD703004AGC-25
µPD703004AGC-33
µPD703003AGC-25
µPD703003AGC-33
µPD70F3004AGC-25
µPD70F3004AGC-33
µPD70F30025AGC-25
µPD70F30025AGC-33
µPD7030025AGC-25
µPD7030025AGC-33
Max. freq.
(MHz)
25
33
25
33
25
33
25
33
25
33
ROM
(Kbytes)
96
96
128
128
-
-
-
-
256
256
Flash
(Kbytes)
-
-
-
-
128
128
256
256
-
-
RAM
(Kbytes)
4
4
4
4
4
4
8
8
8
8
Documentation
Doc Number
U13919EE2V0CD00
U10243EJ6V0UM00
U10913EJ5V0UM00
U13188EJ2V1DS00
U13189EJ2V0DS00
Devices
NEC Micro-Components
V850
V853
V853 Mask
V853 Flash
Type
CD-ROM
Architecture Manual
User’s Manual
Data Sheet
Data Sheet
Tools
Order Number
V850-IAR-Toolset
IE-703003-MC-EM1
CPDW95/NT-CDR-V800
FA100-GC
SC100SDN
FlashMASTER
Devices
V850
V853
V850
V850
V850
Description
ICE + C Compiler
Emulation Board
C/C++ Compiler (GHS)
Type
Hardware & Software
Hardware
Optional Software
Hardware
Hardware & Software
Hardware
100-pin LQFP Programming Adapter
Starter Kit
Programmer
Emulation Probe Extension Optional Hardware
StartWARE-GHS-V850/SA1 V850
For further information on NEC’s V850 family or other NEC products visit our European
website at
www.nec.de
V853
32-bit RISC Microcontrollers
NEC Offices
NEC Electronics (Europe) GmbH,
Oberrather Str. 4, D-40472 Düsseldorf,
Tel. (02 11) 65 03 01, Fax (02 11) 65 03-3 27
NEC Electronics (Germany) GmbH,
Kanzlerstr. 2, D-40472 Düsseldorf,
Tel. (02 11) 65 03 02, Fax (02 11) 65 03-4 90
- Podbielskistr. 164, D-30177 Hannover, Tel. (05 11) 3 34 02-0, Fax (05 11) 3 34 02-34
- Arabellastr. 17, D-81925 München, Tel. (0 89) 92 10 03-0, Fax (0 89) 91 31 82
- Industriestr. 3, D-70565 Stuttgart, Tel. (07 11) 9 90 10-0, Fax (07 11) 9 90 10-19
NEC Electronics (BNL)
- Boschdijk 187a, NL-5612 HB Eindhoven,
Tel. (0 40) 2 44 58 45, Fax (0 40) 2 44 45 80
NEC Electronics (Scandinavia)
- Täby Centrum, Entrance S (7th floor),
S-18322 Täby, Tel. (08) 6 38 08 20, Fax (08) 6 38 03 88
NEC Electronics (France) S.A.,
9, rue Paul Dautier, B.P. 187,
F-78142 Vélizy-Villacoublay Cédex, Tél. (01) 30 67 58 00, Fax (01) 30 67 58 99
NEC Electronics (France) S.A., Representacion en Espana,
Juan Esplandiu 15, E-28007 Madrid, Tel. (01) 5 04 27 87, Fax (01) 5 04 28 60
NEC Electronics Italiana S.R.L.,
Via Fabio Filzi, 25A, I-20124 Milano,
Tel. (02) 66 75 41, Fax (02) 66 75 42 99
- Rome Office, Via Monte Cervialto, 131, I-00139 Roma,
Tel. (06) 8 86 22 91/2, Fax (06) 8 86 22 39
NEC Electronics (UK) Ltd.,
Cygnus House, Sunrise Parkway, Milton Keynes,
GB-MK14 6NP, Tel. (0 19 08) 69 11 33, Fax (0 19 08) 67 02 90
- Scotland Office, Block 3, Carfin Industrial Estate, Motherwell GB-ML1 4UL,
Tel. (0 16 98) 73 22 21, Fax (0 16 98) 83 38 68
© Published by NEC Electronics (Europe) GmbH, Printed in Germany, February 2000
Document No. U12893EE3V0PL00
With compliments
NEC makes no warranty with respect to this documentation and disclaims any implied warranties of merchantability or fitness for particular
purpose. NEC does not assume any responsibility for circuits shown or claim that they are free from patent infringement. Product specifications
are subject to change without notice. To ensure that you have the latest product data, please contact your local NEC sales office.
© NEC Electronics (Europe) GmbH
京公网安备 11010802033920号
EEWORLD
