NEC uPD78056Y User Manual

Page 186

Advertising
background image

186

CHAPTER 8 16-BIT TIMER/EVENT COUNTER

(3) Capture/compare control register 0 (CRC0)

This register controls the operation of the capture/compare registers (CR00, CR01).

CRC0 is set with a 1-bit or 8-bit memory manipulation instruction.

RESET input sets CRC0 value to 04H.

Figure 8-5. Capture/Compare Control Register 0 Format

0

0

0

0

0

CRC02 CRC01 CRC00

7

6

5

4

3

2

1

0

Symbol

CRC0

FF4CH

04H

R/W

Address

After Reset

R/W

CRC00 CR00 Operating Mode Selection

0

Operates as compare register

1

Operates as capture register

CRC01 CR00 Capture Trigger Selection

Captures on valid edge of TI01

Captures on valid edge of TI00

0

1

CRC02 CR01 Operating Mode Selection

Operates as compare register

Operates as capture register

0

1

Cautions 1. Timer operation must be stopped before setting CRC0.

2. When clear & start mode on a match between TM0 and CR00 is selected with the 16-

bit timer mode control register, CR00 should not be specified as a capture register.

(4) 16-bit timer output control register (TOC0)

This register controls the operation of the 16-bit timer/event counter output control circuit. It sets R-S type

flip-flop (LV0) setting/resetting, the active level in PWM mode, inversion enabling/disabling in modes other

than PWM mode, 16-bit timer/event counter timer output enabling/disabling, one-shot pulse output operation

enabling/disabling, and output trigger for a one-shop pulse by software.

TOC0 is set with a 1-bit or 8-bit memory manipulation instruction.

RESET input sets TOC0 value to 00H.

Advertising