HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 120
HD64F3684FP
Manufacturer Part Number
HD64F3684FP
Description
IC H8 MCU FLASH 32K 64LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3684GFPV.pdf
(538 pages)
Specifications of HD64F3684FP
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
PWM, WDT
Number Of I /o
45
Program Memory Size
32KB (32K 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-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
HD64F3684FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD64F3684FPV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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Section 6 Power-Down Modes
6.4
The CPU can execute programs in two modes: active and subactive modes. A direct transition is a
transition between these two modes without stopping program execution. A direct transition can
be made by executing a SLEEP instruction while the DTON bit in SYSCR2 is set to 1. The direct
transition also enables operating frequency modification in active or subactive mode. After the
mode transition, direct transition interrupt exception handling starts.
If the direct transition interrupt is disabled in interrupt enable register 1, a transition is made
instead to sleep or subsleep mode. Note that if a direct transition is attempted while the I bit in
CCR is set to 1, sleep or subsleep mode will be entered, and the resulting mode cannot be cleared
by means of an interrupt.
6.4.1
The time from the start of SLEEP instruction execution to the end of interrupt exception handling
(the direct transition time) is calculated by equation (1).
Direct transition time = {(number of SLEEP instruction execution states) + (number of internal
processing states)} (tcyc before transition) + (number of interrupt exception handling states)
(tsubcyc after transition)
6.4.2
The time from the start of SLEEP instruction execution to the end of interrupt exception handling
(the direct transition time) is calculated by equation (2).
Direct transition time = {(number of SLEEP instruction execution states) + (number of internal
processing states)} (tsubcyc before transition) + {(waiting time set in bits STS2 to STS0) +
(number of interrupt exception handling states)} (tcyc after transition)
Rev.5.00 Nov. 02, 2005 Page 86 of 500
REJ09B0027-0500
Example
Direct transition time = (2 + 1) tosc + 14 8tw = 3tosc + 112tw
(when the CPU operating clock of
Legend
tosc: OSC clock cycle time
tw: Watch clock cycle time
tcyc: System clock ( ) cycle time
tsubcyc: Subclock (
Direct Transition
Direct Transition from Active Mode to Subactive Mode
Direct Transition from Subactive Mode to Active Mode
SUB
) cycle time
(1)
osc
w
/8 is selected)
(2)
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