h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 211

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

9.6
The free-running timer can request seven interrupts: ICIA to ICID, OCIA, OCIB, and FOVI. Each
interrupt can be enabled or disabled by an enable bit in TIER. Independent signals are sent to the
interrupt controller for each interrupt. Table 9.2 lists the sources and priorities of these interrupts.
Table 9.2
9.7
9.7.1
If an internal counter clear signal is generated during the state after an FRC write cycle, the clear
signal takes priority and the write is not performed. Figure 9.17 shows the timing for this type of
conflict.
Interrupt
ICIA
ICIB
ICIC
ICID
OCIA
OCIB
FOVI
Interrupt Sources
Usage Notes
Conflict between FRC Write and Clear
FRT Interrupt Sources
Interrupt Source
Input capture of ICRA
Input capture of ICRB
Input capture of ICRC
Input capture of ICRD
Compare match of OCRA
Compare match of OCRB
Overflow of FRC
φ
Address
Internal write
signal
Counter clear
signal
FRC
Figure 9.17 FRC Write-Clear Conflict
Write cycle of FRC
T
1
FRC address
T
N
2
Interrupt Flag
ICFA
ICFB
ICFC
ICFD
OCFA
OCFB
OVF
Rev. 1.00, 05/04, page 177 of 544
H'0000
Priority
High
Low