h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 256

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

Rev. 1.00, 05/04, page 222 of 544
(Interrupt request signal*
(Interrupt request signal*
(Interrupt request signal)
(Interrupt request signal)
Internal reset signal*
Internal reset signal*
RESO signal*
RESO signal*
Internal NMI
Internal NMI
[Legend]
TCSR_0 : Timer control/status register_0
TCNT_0 : Timer counter_0
TCSR_1 : Timer control/status register_1
TCNT_1 : Timer counter_1
Notes: 1. The RESO signal outputs the low level signal when the internal reset signal is
WOVI0
WOVI1
2. The internal NMI interrupt signal can be independently output from either WDT_0 or WDT_1.
2
2
1
1
1
1
)
)
generated due to a TCNT overflow of either WDT_0 or WDT_1. The internal reset signal
first resets the WDT in which the overflow has occurred first.
The interrupt controller does not distinguish the NMI interrupt request from WDT_0 from
that from WDT_1.
Figure 11.1 Block Diagram of WDT
Interrupt
Interrupt
control
control
control
control
Reset
Reset
Overflow
Overflow
Module bus
Module bus
TCNT_1
TCNT_0
Clock
Clock
WDT_0
WDT_1
selection
selection
TCSR_1
Clock
TCSR_0
Clock
Internal clock
Internal clock
φ/2
φ/64
φ/128
φ/512
φ/2048
φ/8192
φ/32768
φ/131072
interface
interface
φ/2
φ/64
φ/128
φ/512
φ/2048
φ/8192
φ/32768
φ/131072
Bus
Bus
φSUB/2
φSUB/4
φSUB/8
φSUB/16
φSUB/32
φSUB/64
φSUB/128
φSUB/256