CHAPTER 8 8/16-BIT CAPTURE TIMER/COUNTER

8.2Configuration of 8/16-bit Capture Timer/Counter

The 8/16-bit capture timer/counter consists of the following seven blocks:

•Count clock selectors 0/1

•Counter circuits 0/1

•Square wave output control circuit

•Timer 0/1 data registers (TDR0, TDR1)

•Timer 0/1 control registers (TCR0, TCR1)

•Capture data registers (TCPL, TCPH)

•Timer output control register (TCR2)

■Block Diagram of 8/16-bit Capture Timer/Counter

Figure 8.2-1 Block Diagram of 8/16-bit Capture Timer/Counter

P33/EC

Pin

CK6 to CK0

TSTR0 TCS00 TCS01

TCS02 CINV T0IEN TFCR0

TIF0

 

 

 

 

TCR0

 

3

 

 

TCCR

 

RESV EDGS0 EDGS1 TCMSK CCMSK CPIEN CFCLR

CPIF

 

 

Counter clear

 

 

 

mask (capture clr)

 

 

Counter clear mask (identity clr)

 

 

Counter clear

 

 

 

 

Capture latch

 

 

 

 

 

 

P34/TO/ INT10

M

 

 

Q

Pin

CK 8-bit counter "L"

 

TFF

 

P

CO

 

 

X

CLR

 

 

 

 

 

 

 

 

Comparator

EQ

 

 

 

LOAD comparator latch

 

 

 

 

 

TCPL

 

bus

IRQ3

IRQ4

CK6 to

M P X

TDR0

TDR1

Data register "L"

Data register "H"

LOAD comparator latch

Comparator EQ

CLR 8-bit counter "H"

CK

Capture register "L"

Capture register "H"

TCPH

Internal data

CK0

8-bit mode

3

 

 

TCR1

TSTR1 TCS10 TCS11 TCS12

T1IEN TFCR1

TIF1

 

 

Port output enable

 

 

Timer0, Timer1

 

 

output selection

 

PEN

TSEL

TCR2

166

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Fujitsu MB89202, F202RA Configuration of 8/16-bit Capture Timer/Counter, Block Diagram of 8/16-bit Capture Timer/Counter
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F202RA, MB89202 specifications

The Fujitsu MB89202 and F202RA microcontrollers are part of the 16-bit microcontroller family, renowned for their robust performance and versatility in a variety of embedded system applications. These devices are tailored for high-efficiency operation across diverse industries, including automotive, consumer electronics, and industrial automation.

One of the main features of the MB89202 is its powerful CPU core, which operates at a clock speed of up to 20 MHz. This enables the microcontroller to perform complex calculations and consumer-grade applications seamlessly. The architecture is designed to handle multiple tasks effectively, making it suitable for real-time operations.

Memory capacity is a vital characteristic of the MB89202, featuring on-chip RAM and ROM configurations. The microcontroller can accommodate different memory variants, providing developers with flexibility in memory allocation based on their application requirements. This adaptability facilitates applications ranging from simple control systems to complex data processing tasks.

The F202RA variant extends the capabilities of the MB89202 by integrating advanced peripheral functions. It includes built-in timers, A/D converters, and serial communication interfaces, which are essential for interfacing with other hardware components or sensors. The availability of these peripherals reduces the need for additional external circuits, thus contributing to a more compact and cost-effective design.

In terms of power management, the MB89202 series employs advanced power-saving technologies. The microcontroller offers various low-power modes, enabling devices to conserve energy during idle times, making it highly suitable for battery-operated applications. This characteristic not only enhances the efficiency of devices but also extends their operational lifespan.

Moreover, the Fujitsu MB89202 series incorporates robust protection features, including watchdog timers and failure detection mechanisms. These safety features ensure reliable operation in critical systems, making them a preferred choice in applications where failure is not an option.

The MB89202 and F202RA microcontrollers also support a range of development tools and environments, including integrated development environments (IDEs) and software libraries, which facilitate rapid application development. With these tools, developers can efficiently prototype, debug, and optimize their applications.

In summary, the Fujitsu MB89202 and F202RA microcontrollers stand out with their efficient performance, extensive memory options, integrated peripherals, and power-saving capabilities, making them ideal for a wide array of embedded applications. Their reliability and robustness further enhance their attractiveness for designers seeking advanced microcontroller solutions.
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