To our customers,
Old Company Name in Catalogs and Other Documents
On April 1
st
, 2010, NEC Electronics Corporation merged with Renesas Technology
Corporation, and Renesas
Electronics Corporation
took over all the business of both
companies.
Therefore, although the old company name remains in this document, it is a valid
Renesas
Electronics document. We appreciate your understanding.
Renesas Electronics website:
http://www.renesas.com
April 1
st
, 2010
Renesas Electronics Corporation
Issued by:
Renesas Electronics Corporation
(http://www.renesas.com)
Send any inquiries to
http://www.renesas.com/inquiry.
Notice
1.
All information included in this document is current as of the date this document is issued. Such information, however, is
subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please
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“Standard”:
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
(Note 1) “Renesas Electronics” as used in this document means Renesas Electronics Corporation and also includes its majority-
owned subsidiaries.
(Note 2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.
M30245 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
REJ03B0005-0200
Rev.2.00
Oct 16, 2006
M30245 Group
The M30245 group is a 16-bit microcomputer based on the M16C family core technology that uses a high
performance silicon gate CMOS process with an M16C/62 Series CPU core. It comes packaged in a 100-pin
molded plastic LQFP. They are single-chip USB peripheral microcontrollers that operate at Full Speed (12
Mbps) and are compliant with the Universal Serial Bus (USB) Version 2.0 specification. They also include many
built-in peripherals including: A/D converter, Timers, UARTs, Serial Sound Interface, I
2
C, DMAC, CRC and
more. These microcontrollers operate using sophisticated instructions featuring a high level of instruction effi-
ciency, making them capable of executing instructions at high speed.
Features
Number of instructions ................................ 91
Shortest instruction execution time ............. 62.5ns f(X
IN
)=16MHz, Vcc=3V with no wait
USB features: .............................................. Supports full-speed operation (12 Mbps)
3.25K programmable FIFO, 9 endpoints
Integrated transceiver
Conforms to USB V 2.0 Specification
Frequency synthesizer ................................ PLL for 48MHz clock
Memory capacity .......................................... 64K ROM / 5K RAM (M30245M8-XXXGP)
128K ROM / 10K RAM (M30245MC-XXXGP)
128K Flash /10K RAM (M30245FCGP)
Supply voltage ............................................. 3.0 to 3.6V (f(X
IN
)=16MHz)
Processor modes ....................................... Single chip, Memory expansion, Microprocessor
Interrupts ..................................................... 31 internal and 5 external interrupt sources
4 software interrupt sources
7 levels (including key input interrupt X 8)
Multifunction 16-bit timer ............................. 5 16-bit timers
Serial Communication ................................ 2 X 7/8/9, 2 X 7/8/9/16/24/32 bits
Configurable for synchronous or asynchronous mode,
Serial Sound Interface, I
2
C Bus
DMAC ........................................................... 4 channels
A/D Converter ............................................... 10 bits X 8 channels
CRC calculation circuit ................................ 2 polynomials with MSB/LSB selectable
Watchdog timer ........................................... 1 line
Key-on wake up ........................................... 8 inputs
Programmable I/O ....................................... 82 lines
AND flash control circuit .............................. Built-in
Clock-generating circuit .............................. 2 built-in clock generation circuits
(built-in feedback resistor, and external ceramic or quartz oscillator)
Rev.2.00 Oct 16, 2006
REJ03B0005-0200
page 1 of 264
M30245 Group
Description
Table of Contents
Features ................................................................................................................................................. 1
Description ............................................................................................................................................ 3
Memory ................................................................................................................................................ 12
Central Processing Unit ..................................................................................................................... 13
Reset .................................................................................................................................................... 16
Special Function Registers ................................................................................................................ 18
Processor Modes ................................................................................................................................ 26
System Clock ....................................................................................................................................... 38
Power Control ..................................................................................................................................... 45
Frequency synthesizer circuit ............................................................................................................ 47
Interrupts .............................................................................................................................................. 50
INT interrupt ......................................................................................................................................... 62
NMI Interrupt ........................................................................................................................................ 62
Key-Input Interrupt .............................................................................................................................. 62
Address-Match Interrupt ...................................................................................................................... 65
Watchdog Timer .................................................................................................................................. 68
Universal Serial Bus ............................................................................................................................ 70
Vbus Detect .......................................................................................................................................... 98
Direct memory access controller ..................................................................................................... 100
Timer A .............................................................................................................................................. 110
Serial Communication ...................................................................................................................... 125
Clock synchronous serial I/O mode ................................................................................................. 132
Clock asynchronous serial I/O (UART) mode .................................................................................. 137
UART mode (compliant with the SIM interface) ............................................................................. 142
I
2
C Bus interface mode ..................................................................................................................... 145
Serial Interface Special Function (SPI mode) ................................................................................ 151
IE mode .............................................................................................................................................. 154
Serial Sound Interface ...................................................................................................................... 156
A/D converter ..................................................................................................................................... 168
CRC calculation circuit ..................................................................................................................... 177
Programmable I/O ports ................................................................................................................... 180
AND Flash Control Circuit ................................................................................................................. 190
Flash memory .................................................................................................................................... 195
CPU Rewrite Mode ............................................................................................................................ 197
Parallel I/O Mode .............................................................................................................................. 206
Standard Serial I/O Mode ................................................................................................................. 208
Standard serial I/O mode 1 .............................................................................................................. 211
Standard serial I/O mode 2 .............................................................................................................. 223
Electrical Specifications ................................................................................................................... 234
Usage Notes ....................................................................................................................................... 250
Rev.2.00 Oct 16, 2006
REJ03B0005-0200
page 2 of 264
M30245 Group
Description
Applications
USB peripherals, such as telephones, audio systems, office equipment, communications equipment, portable
devices, scanners, digital cameras, and memory card readers.
Block Diagram
Figure 1.1 is a block diagram of the M30245 group.
8
Port P0
8
Port P1
8
Port P2
8
Port P3
8
Port P4
8
Port P5
8
Port P6
8
Port P7
Port P8
Internal Peripheral Functions
Timers
Timer TA0 (16 bits)
Timer TA1 (16 bits)
Timer TA2 (16 bits)
Timer TA3 (16 bits)
Timer TA4 (16 bits)
System Clock Generator
Xin - Xout
Xcin - Xcout
CRC Arithmetic Circuit
(X
16
+X
12
+X
5
+1, X
16
+X
15
+X
2
+1)
DMAC
(4 channels)
Memory
USB FIFO
(3.25K bytes)
ROM/FLASH
(Note 1)
RAM
(Note 2)
7
1
Port P8
5
UART/Clock Synchronous SI/O
(8 bits X 4 channels)
A/D Converter
(10 bits X 8 channels)
Watchdog Timer
(15 bits)
AND flash control circuit
M16C/62 16-bit CPU Core
Ports P90, P92, P93
Registers
R0H
R0L
R0H
R0L
R1H
R1L
R1H
R1L
R2
R2
R3
R3
A0
A0
A1
A1
FB
FB
SB
Program counter
PC
Vector table
INTB
Stack pointer
ISP
USP
3
Port P10
USB Function
with frequency synthesizer
FLG
Multiplier
8
Note 1: ROM size depends on MCU type
Note 2: RAM size depends on MCU type
Figure 1.1. Block diagram of M30245 group
Rev.2.00 Oct 16, 2006
REJ03B0005-0200
page 3 of 264
Microchip MCU
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