3 16-bit timer/event counter configuration – NEC uPD78056Y User Manual

Page 179

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CHAPTER 8 16-BIT TIMER/EVENT COUNTER

8.3 16-Bit Timer/Event Counter Configuration

The 16-bit timer/event counter consists of the following hardware.

Table 8-4. 16-Bit Timer/Event Counter Configuration

Item

Configuration

Timer register

16 bits

×

1 (TM0)

Register

Capture/compare register: 16 bits

×

2 (CR00, CR01)

Timer output

1 (TO0)

Timer clock select register 0 (TCL0)

16-bit timer mode control register (TMC0)

Capture/compare control register 0 (CRC0)

Control register

16-bit timer output control register (TOC0)

Port mode register 3 (PM3)

External interrupt mode register 0 (INTM0)

Sampling clock select register (SCS)

Note

Note

Refer to Figure 21-1. Basic Configuration of Interrupt Function.

TCL06 TCL05 TCL04

Timer Clock

Selection

Register 0

3

Internal bus

Capture/Compare

Control Register 0

CRC02 CRC01 CRC00

Selector

TI01/
P01/INTP1

INTTM3

2f

XX

f

XX

f

XX

/2

f

XX

/2

2

Selector

16-Bit Capture/Compare

Control Register (CR01)

Internal Bus

16-Bit Capture/Compare
Control Register (CR00)

Clear

Match

Clear Circuit

TMC03 TMC02 TMC01 OVF0

OSPT OSPETOC04 LVS0 LVR0 TOC01 TOE0

16-Bit Timer Mode
Control Register

16-Bit Timer Output
Control Register

2

PWM Pulse
Output
Controller

16-Bit Timer/Event
Counter Output
Control Circuit

Note 2

TMC01-TMC03

INTP0

INTTM01

TO0/P30

INTP1

INTTM00

Match

TMC01-TMC03

3

16-Bit Timer Register (TM0)

TI00/P00/

INTP0

Note 1

CRC02

Figure 8-1. 16-Bit Timer/Event Counter Block Diagram

Notes 1. Edge detection circuit

2. The configuration of the 16-bit timer/event counter output control circuit is shown in Figure 8-2.

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