M37920FCCGP Datasheet, PDF (1/158 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION

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MITSUBISHI MICROCOMPUTERS
M37920FCCGP, M37920FCCHP
M37920FGCGP, M37920FGCHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
DESCRIPTION
These are single-chip microcomputers designed with high-perfor-
mance CMOS silicon gate technology, including the internal flash
memory. These are housed in 100-pin plastic molded QFP. These
microcomputers support the 7900 Series instruction set, which are
enhanced and expanded instruction set and are upper-compatible
with the 7700/7751 Series instruction set.
The CPU of these microcomputers is a 16-bit parallel processor that
can also be switched to perform 8-bit parallel processing. Also, the
bus interface unit of these microcomputers enhances the memory
access efficiency to execute instructions fast. These microcomputers
include the 4-channel DMA controller and the DRAM controller.
Therefore, these microcomputers are suitable for office, business,
and industrial equipment controller that require fast processing of
large data.
For the internal flash memory, single-power-supply programming
and erasure, using a PROM programmer or the control by the cen-
tral processing unit (CPU), is supported. Also, each of these micro-
computers has the memory area dedicated for storing a certain
software which controls programming and erasure (reprogramming
control software). Therefore, on these microcomputers, the program
can easily be changed even after they are mounted on the board.
• ^{Erase method ............................................ Block erase or Total erase}
(Data protection per block is enabled.)
• ^{Programming/Erase control by software command}
• ^{Maximum number of reprograms ............................................ 100}
APPLICATION
Control devices for personal computer peripheral equipment such as
CD-ROM drives, DVD-ROM drives, hard disk drives, high density
FDD, printers
Control devices for office equipment such as copiers and facsimiles
Control devices for industrial equipment such as communication and
measuring instruments
DISTINCTIVE FEATURES
<Microcomputer mode>
• ^{Number of basic machine instructions .................................... 203}
• ^Memory
[M37920FCCGP, M37920FCCHP]
Flash memory (User ROM area) ................................. 120 Kbytes
RAM ............................................................................. 4096 bytes
[M37920FGCGP, M37920FGCHP]
Flash memory (User ROM area) ................................. 248 Kbytes
RAM ............................................................................. 6144 bytes
[All of the above computers]
Flash memory (Boot ROM area) ................................... 16 Kbytes
• ^{Instruction execution time}
The fastest instruction at 20 MHz frequency ........................ 50 ns
• ^{Single power supply .................................................... 5 V ± 0.5 V}
• ^{Interrupts ........... 6 external sources, 20 internal sources, 7 levels}
• ^{Multi-functional 16-bit timer ................................................... 5 + 3}
• ^{Serial I/O (UART or Clock synchronous) ..................................... 2}
• ^{10-bit A-D converter ............................................ 4-channel inputs}
• ^{DMA controller .............................................................. 4 channels}
• ^{DRAM controller}
• ^{Real-time output}
.... 4 bits × 2 channels, or 6 bits × 1 channel + 2 bits × 1 channel
• ^{12-bit watchdog timer}
• ^{Programmable input/output (ports P0–P12) .............................. 85}
<Flash memory mode>
• ^{Power supply voltage .................................................. 5 V ± 0.5 V}
• ^{Programming/Erase voltage ........................................ 5 V ± 0.5 V}
• ^{Programming method ............ Programming in a unit of 256 bytes}