M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 100

• Manufacturer Part Number: M30245FCGP#U1
• Description: IC M16C/24 MCU FLSH 128K 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/20r

Specifications of M30245FCGP#U1

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, SSI, UART/USART, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100LQFP
• Family Name: R8C
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 82
• Interface Type: USB/UART/I2C/SPI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M30245 Group
Figure 1.68. Vbus-related memory map
Rev.2.00
REJ03B0005-0200
Figure 1.67. USB self-powered mode connection example
Vbus Detect
The Vbus Detect function will detect when the USB host is powered-up during USB self-powered operation. Self-
powered operation means the microcontroller has a power source external to the USB. This type of connection requires
the need to monitor when the USB host powers-up or powers-down. The other power mode, called Bus-powered
mode, means the microcontroller is powered directly from the USB Vbus connection. This type of connection does not
require the Vbus detect function because the microcontroller is actually powered from the USB so you know the USB
host is already powered-up.
The VbusDTCT pin is used for the Vbus detect function. When operating the USB in self-powered mode, connect the
Vbus line from the USB connector to the VbusDTCT pin. The Vbus detect function can be enabled or disabled in the USB
attach/detach register (bit 7 at address 001F
interrupt will be generated. This interrupt can be enabled or disable using the Vbus detect interrupt control register
(address 005C
(bit 1 at address 03F1
Figure 1.67 is an example of the USB self-powered mode connection. Figure 1.68 shows the Vbus-related registers.
Oct 16, 2006
16
). When a Vbus detect interrupt is received, the Vbus detect state bit located in the Port 9 data register
page 98 of 264
16
To USB circuitry
) should be read to determine if the Vbus is powered up or not.
Address
001F
005F
03F1
16
16
16
~ ~
~ ~
USB Attach/Detach register
Vbus detect interrupt control register
Port P9
Note: Not all necessary components are shown.
Vbus
GND
16
D+
D-
). Each time the USB host powers up or powers down, a Vbus detect
Register name
VbusDTCT
D+
D-
Vss
M30245
Vcc
Vcc
UVcc
~ ~
~ ~
Acronym
USBAD
VBDIC
P9
Vbus Detect