NEC uPD78056Y User Manual

Page 226

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226

CHAPTER 9 8-BIT TIMER/EVENT COUNTERS 1 AND 2

(3) 8-bit timer output control register (TOC1)

This register controls operation of 8-bit timer/event counter output control circuits 1 and 2.

It sets/resets the R-S flip-flops (LV1 and LV2) and enables/disables inversion and 8-bit timer output of 8-bit

timer registers 1 and 2.

TOC1 is set with a 1-bit or 8-bit memory manipulation instruction.

RESET input sets TOC1 to 00H.

Figure 9-6. 8-Bit Timer Output Control Register Format

Cautions 1. Be sure to set TOC1 after stopping timer operation.

2. After data setting, 0 can be read from LVS1, LVS2, LVR1 and LVR2.

<0>

1

<2>

<3>

<4>

5

<6>

<7>

Symbol

TOE1

TOC11

LVR1

LVS1

TOE2

TOC15

LVR2

LVS2

TOC1

FF4FH

00H

R/W

Address

After Reset

R/W

TOE1 8-Bit Timer/Event Counter 1 Outptut Control

0

Output disable (port mode)

1

Output enable

TOC11 8-Bit Timer/Event Counter 1 Timer Output F/F Control

0

Inverted operation disable

1

Inverted operation enable

LVS1 LVR1 8-Bit Timer/Event Counter 1 Timer Output F/F Status Set

0

0

Unchanged

0

1

Timer output F/F reset (0)

1

0

Timer output F/F set (1)

1

1

Setting prohibited

TOE2 8-Bit Timer/Event Counter 2 Output Control

0

Output disable (port mode)

1

Output enable

TOC15 8-Bit Timer/Event Counter 2 Timer Output F/F Control

0

Inverted operation disable

1

Inverted operation enable

LVS2 LVR2 8-Bit Timer/Event Counter 2 Timer Output F/F Status Set

0

0

Unchanged

0

1

Timer output F/F reset (0)

1

0

Timer output F/F set (1)

1

1

Setting prohibited

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