M30240ECFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30240ECFP Datasheet - Page 10

• Manufacturer Part Number: M30240ECFP
• Description: M30240 Group Specification
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Specifications in this manual are tentative and subject to change
Overview
1.7 Overview
Figure 1.4:
The M30240 group 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 1.4.
The USB function control unit of the M30240 group 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.
M30240 block diagram
LED Drivers
(X 8)
A-D
Converter
(Normal MCU or DMA Transfer)
CRC Circuit
Timers x 8
Watchdog
UART x 3
I/O Ports (P0~P3, P6 ~ P8, P10)
Timer
1-10
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
synthesizer
frequency
1 - 12MHz
DMAC x 2
M16C CPU
ROM
RAM
48 MHz
FIFOs
Mitsubishi microcomputers
M30240 Group
D+
D-