r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 791

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

11.10.13 Multiplexing of I/O Pins
In this LSI, the TCLKA input pin is multiplexed with the TIOCC0 I/O pin, the TCLKB input pin
with the TIOCD0 I/O pin, the TCLKC input pin with the TIOCB1 I/O pin, and the TCLKD input
pin with the TIOCB2 I/O pin. When an external clock is input, compare match output should not
be performed from a multiplexed pin.
11.10.14 Interrupts and Module Stop Mode
If module stop mode is entered when an interrupt has been requested, it will not be possible to
clear the CPU interrupt source or the DMAC or DTC activation source. Interrupts should therefore
be disabled before entering module stop mode.
Figure 11.54 Contention between TCNT Write and Overflow
φ
Address
Write signal
TCNT
TCFV flag
H'FFFF
TCNT write cycle
T
TCNT address
1
T
2
Rev. 1.00 Sep. 19, 2008 Page 761 of 1342
Section 11 16-Bit Timer Pulse Unit (TPU)
M
TCNT write data
REJ09B0467-0100