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PDF UPD70320L Data sheet ( Hoja de datos )

Número de pieza UPD70320L
Descripción V25TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER
Fabricantes NEC 
Logotipo NEC Logotipo



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No Preview Available ! UPD70320L Hoja de datos, Descripción, Manual

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD70320
V25TM
16/8-BIT SINGLE-CHIP MICROCONTROLLER
The µPD70320 (V25) is a single-chip microcontroller on which 16-bit CPU, RAM, serial interface, timer, DMA
controller, interrupt controller, etc. are all integrated. The µPD70320 is compatible with the 8/16-bit microprocessor
µPD70108/ 70116 (V20TM/V30TM) on the software level.
The details of the functions are described in the following User's Manuals. Be sure to read it before starting
design.
• V25, V35TM User's Manual — Hardware
: IEM-1220
• V25, V35 Family User's Manual — Instructions : U12120J (Japanese version)
FEATURES
Internal 16-bit architecture and external 8-bit data bus
Compatible with µPD70108/ 70116 (in native mode) on software level (some instructions added)
Minimum instruction cycle : 400 ns/5 MHz (µPD70320)
250 ns/8 MHz (µPD70320-8)
On-chip RAM : 256 words × 8 bits
Input port (port T) with comparator : 8 bits
I/O lines (input port : 4 bits, input/output port : 20 bits)
Serial interface (internal dedicated baud rate generator) : 2 channels
Asynchronous mode and I/O interface mode
Interrupt controller
• Programmable priority (8 levels)
• Vectored interrupt function
• Register bank switching function
• Macro service function
DRAM and pseudo SRAM refreshing functions
DMA controller : 2 channels
16-bit timer : 2 channels
Time base counter
On-chip clock generator
Programmable wait function
Standby function (STOP/HALT)
The information in this document is subject to change without notice.
Document No. U10090EJ8V0DS00 (8th edition)
Date Published November 1997 N
Printed in Japan
The mark shows major revised points.
©
11999965

1 page




UPD70320L pdf
P20/DMARQ0
P21/DMAAK0
P22/TC0
P23/DMARQ1
P24/DMAAK1
P25/TC1
TxD0
RxD0
P16/SCK0
CTS0
TxD1
RxD1
CTS1
P10/NMI
P11/INTP0
P12/INTP1
P13/INTP2/INTAK
P14/INT/POLL
PROGRAMMABLE
DMA
CONTROLLER
SERIAL
INTERFACE
BAUD RATE
GENERATOR
PROGRAMMABLE
INTERRUPT
CONTROLLER
LC
etc.
PSW
PC
ALU
TA
TB
TC
INTERNAL RAM
256 byte
• GR
• MACRO SERVICE
CHANNEL
INSTRUCTION DECODER
MICRO SEQUENSER
MICRO ROM
PFP INC
Note
INTERNAL ROM
8 Kbyte
(reserved)
QUEUE
(6 byte)
16-BIT TIMER
TOUT/P15
Note Not user-accessible.
TIME BASE
COUNTER
PORT
REFRQ CLKOUT/PO7
P0 P1 P2
PORT with
COMPARATOR
PT0 to 7 VTH
CG
A0 to A19
RESET
HLDAK/P26
HLDRQ/P27
READY/P17
MREQ
MSTB
R/W
IOSTB
POLL/INT/P14
EA
D0 to D7
X1
X2
VDD
GND

5 Page





UPD70320L arduino
µPD70320
2.2 Instruction Set Operation
Identifier
reg
reg8
reg16
dmem
mem
mem8
mem16
mem32
sfr
imm
imm3
imm4
imm8
imm16
acc
sreg
src-table
src-block
dst-block
near-proc
far-proc
near-label
short-label
far-label
memptr16
memptr32
regptr16
pop-value
fp-op
R
Table 2-1. Operand Identifier
Description
8-/16-bit general register
8-bit general register
16-bit general register
8-/16-bit memory location
8-/16-bit memory location
8-bit memory location
16-bit memory location
32-bit memory location
8-bit special function register location
Constant within 0 to FFFFH
Constant within 0 to 7
Constant within 0 to FH
Constant within 0 to FFH
Constant within 0 to FFFFH
Register AW or AL
Segment register
256-byte conversion table name
Register IX-addressed block name
Register IY-addressed block name
Procedure in the current program segment
Procedure in another program segment
Label in the current program segment
Label within end of instruction to –128 to +127 bytes
Label in another program segment
Word including location offset in the current program segment to which control is to be passed
Double-word including location offset in another program segment to which control is to be passed
and segment base address
16-bit general register including location offset in another program segment to which control is to be
passed
Number of bytes to be abandoned from stack (0 to 64K, normally even number)
Immediate value to judge instruction code of external floating point operation chip
Register set
11

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