R8C/20 Group, R8C/21 Group 14. Timers
Rev.2.00 Aug 27, 2008 Page 220 of 458
REJ09B0250-0200
Figure 14.82 Registers TRDIER0 to TRDIER1 in Reset Synchronous PWM Mode
Figure 14.83 TRD0 Registrar in Reset Synchronous PWM Mode
Timer RD Interrupt Enable Register i (i = 0 or 1)
Symbol Address After Reset
TRDIER0
TRDIER1
0144h
0154h
11100000b
11100000b
Bit Symbol Bit Name Function RW
b3 b2
IMIED
b1 b0b7 b6 b5 b4
RW
IMIEB RW
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 RW
RW
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
RWOVIE
—
(b7 - b5)
—
Nothing is assigned. If necessary, set to 0.
When read, the content is 1.
Timer RD Counter 0
(1,2)
Symbol Address After Reset
TRD0
0147h-0146h 0000h
Setting Range RW
NOTES:
1.
2.
(b8)
b0
(b15)
b7 b0b7
The TRD1 register is not used in reset synchronous PWM mode.
Function
Count a count source. Count operation is incremented.
When an overflow occurs, the OVF bit in the TRDSR0 register is set to 1.
0000h to FFFFh RW
Access the TRD0 register in 16-bit units. Do not access it in 8-bit units.
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