MB91155 datasheet(3/105 Pages) FUJITSU

3 / 105 page

MB91F155A/MB91155/MB91154

(Continued)

11. Serial I/O

•UART

× 4 channels. Any of them is capable of serial transfer in sync with clock attached with the LSB/MSB

switching function.

• Serial data output and serial clock output are selectable by push-pull/open drain software.

• A 16-bit timer (U-timer) is contained as a dedicated baud rate generator allowing any baud rate to be generated.

12. I2C Bus Interface

• One channel master/slave send and receive

• Arbitration and clock synchronization functions

(The product is licensed with the Philips I2C patent to support those customers who intend to use this product

in an I2C system in compliance with the standard I2C specification stipulated by Philips.)

13. Clock Switching Function

• Gear function : Operating clock ratios to the basic clock can be set independently for the CPU and peripherals

from four types, 1 : 1, 1 : 2, 1 : 4 or 1 : 8.

14. Clock Function (Calendar Macro)

• Internal 32 kHz clock function

• It is possible to perform the clock function (oscillation frequency: 32 kHz) even in a stop mode. (The oscillation

does not suspend during a stop mode.)

15. Interrupt Controller

External interrupt input (16 channels in total) :

• Allows the rising edge/falling edge/H level/L level to be set.

Internal interrupt factors :

• Interrupt by resources and delay interrupt

16. Others

• Reset cause : Power on reset/watchdog timer/software reset/external reset

• Low power consumption mode : Sleep/stop

• Package : 144-pin LQFP

• CMOS technology (0.35

µm)

• Power supply voltage : 3.15 V to 3.6 V

• MB91F155 is to be MB91F155A.

MB91155 Scheda tecnica(PDF) 3 Page - fujitsu semiconductor