HD64F3687GH Renesas Electronics America, HD64F3687GH Datasheet - Page 87
HD64F3687GH
Manufacturer Part Number
HD64F3687GH
Description
IC H8 MCU FLASH 56K 64-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3684GFPV.pdf
(538 pages)
Specifications of HD64F3687GH
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
45
Program Memory Size
56KB (56K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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3.2.4
IENR2 enables, timer B1 overflow interrupts.
When disabling interrupts by clearing bits in an interrupt enable register, or when clearing bits in
an interrupt flag register, always do so while interrupts are masked (I = 1). If the above clear
operations are performed while I = 0, and as a result a conflict arises between the clear instruction
and an interrupt request, exception handling for the interrupt will be executed after the clear
instruction has been executed.
3.2.5
IRR1 is a status flag register for direct transition interrupts, RTC interrupts, and IRQ3 to IRQ0
interrupt requests.
Bit
7, 6
5
4 to 0
Bit
7
6
Bit Name
IENTB1
Bit Name
IRRDT
IRRTA
Interrupt Enable Register 2 (IENR2)
Interrupt Flag Register 1 (IRR1)
Initial
Value
All 0
0
All 1
Initial
Value
0
0
R/W
R/W
R/W
R/W
R/W
Description
Reserved
These bits are always read as 0.
Timer B1 Interrupt Enable
When this bit is set to 1, timer B1 overflow interrupt
requests are enabled.
Reserved
These bits are always read as 1.
Description
Direct Transfer Interrupt Request Flag
[Setting condition]
When a direct transfer is made by executing a SLEEP
instruction while DTON in SYSCR2 is set to 1.
[Clearing condition]
When IRRDT is cleared by writing 0
RTC Interrupt Request Flag
[Setting condition]
When the RTC counter value overflows
[Clearing condition]
When IRRTA is cleared by writing 0
Rev.5.00 Nov. 02, 2005 Page 53 of 500
Section 3 Exception Handling
REJ09B0027-0500
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