USB-100 Fujitsu Semiconductor America Inc, USB-100 Datasheet - Page 116

• Manufacturer Part Number: USB-100
• Description: KIT STARTER FOR USB
• Manufacturer: Fujitsu Semiconductor America Inc
• Type: MCUr

Specifications of USB-100

• Contents: Board, Cable
• For Use With/related Products: MB91F662
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 865-1108

assumed when operating this sample program.
9.3.1
The operation of the main routine is shown below. Note that the following conditions are
Figures 11.3.1-1 to 11.3.1-3 show the flow of the sample program.
Figure 11.3.1-1 Counter operation flow (main.c Extint.c, sio.tx.c, fram_init.c)
<MB91F662 setting conditions>
FLASH access size setting: 32 bits (no changes to default value)
FLASH wait setting: 1 wait
CLKB (CPU): 32 MHz (External clock 4 MHz x PLL-8 multiplier setting)
CLKP (peripheral): 32 MHz (External clock 4 MHz x PLL-8 multiplier setting)
Main routine
FLASH access settings
MCU clock setting (set in the monitor debugger/no setting necessary)
Initialize FRAM (set control signals,
Initialize PORT (LED output)
Initialize external interrupt
Initialize MFS (SPI mode)
issue WRSR command)
Set Flash wait
Start
115
Set CPU interrupt level
(wait for SW input)
Enable interrupt
Software loop
Invert LED