R8CSLASH20 datasheet(196/501 Pages) RENESAS

196 / 501 page

R8C/20 Group, R8C/21 Group

14. Timers

Rev.2.00 Aug 27, 2008

Page 180 of 458

REJ09B0250-0200

Figure 14.42

Registers TRDIER0 to TRDIER1 in Input Capture Function

Figure 14.43

Registers TRD0 to TRD1 in Input Capture Function

Timer RD Interrupt Enable Register i (i = 0 or 1)

Symbol

Address

After Reset

TRDIER0

TRDIER1

0144h

0154h

11100000b

Bit Symbol

Bit Name

Function

b3 b2

IMIED

b1 b0

b7 b6 b5 b4

IMIEB

Input capture/compare match

interrupt enable bit A

0 : Disable an interrupt (IMIA) by the

IMFA bit

1 : Enable an interrupt (IMIA) by the

IMFA bit

Input capture/compare match

interrupt enable bit B

0 : Disable an interrupt (IMIB) by the

IMFB bit

1 : Enable an interrupt (IMIB) by the

IMFB bit

IMIEA

Input capture/compare match

interrupt enable bit C

0 : Disable an interrupt (IMIC) by the

IMFC bit

1 : Enable an interrupt (IMIC) by the

IMFC bit

IMIEC

Input capture/compare match

interrupt enable bit D

0 : Disable an interrupt (IMID) by the

IMFD bit

1 : Enable an interrupt (IMID) by the

IMFD bit

Overflow /underflow interrupt

enable bit

0 : Disable an interrupt (OVI) by the

OVF bit

1 : Enable an interrupt (OVI) by the

OVF bit

OVIE

—

(b7 - b5)

—

Nothing is assigned. If necessary, set to 0.

When read, the content is 1.

Timer RD Counter i (i = 0 or 1)

(1)

Symbol

Address

After Reset

TRD0

TRD1

0147h-0146h

0157h-0156h

0000h

Setting Range

NOTE:

(b8)

(b15)

Access the TRDi register in 16-bit units. Do not access it in 8-bit units.

Function

Count a count source. Count operation is incremented.

When an overflow occurs, the OVF bit in the TRDSRi register is set to 1.

0000h to FFFFh

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