參數資料
型號: M30240M4-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, MICROCONTROLLER, PQFP80
封裝: 0.80 MM PITCH, PLASTIC, QFP-80
文件頁數: 104/125頁
文件大?。?/td> 753K
代理商: M30240M4-XXXFP
CONFIDENTIAL
10
Mitsubishi microcomputers
M16C / 24 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change
Overview
1.7 Overview
The M30240 device is a single chip PC peripheral microcontroller based on the Universal
Serial Bus (USB) Version 1.1 specification. This device provides interface between a USB-
equipped host computer and PC peripherals such as telephones, audio systems, and digital
cameras. The M30240 block diagram is shown in Figure 4.
The USB function control unit of the M30240 device can support all four data transfer types
listed in the USB specification: Isochronous, Interrupt, Bulk, and Control. Each transfer type is
used for controlling a different set of PC peripherals. Isochronous transfers provide guaranteed
bus access, a constant data rate, and error tolerance for devices such as computer-telephone
integration (CTI) and audio systems. Interrupt transfers are designed to support human input
devices (HID) that communicate small amounts of data infrequently. Bulk transfers are
necessary for devices such as digital cameras and scanners that communicate large amounts
of data to the PC as bus bandwidth becomes free. Finally, control transfers are supported
and are useful for bursty, host-initiated type communication where bus management is the
primary concern.
Figure 4:
M30240 block diagram
frequency
RAM
EPROM
DMAC x 2
M16C CPU
UART x 3
Timers x 8
Watchdog
CRC Circuit
I/O Ports (P0~P3, P6 ~ P8, P10)
FIFOs
USB
Function
Control
Unit
T
ranscei
v
er
D+
D-
(Normal MCU or DMA Transfer)
4 - 12MHz
48 MHz
Φ
synthesizer
LED Drivers
( X 8 )
A-D
Converter
Timer
(3.0K)
128K
ROM 40K
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