HD64F3664H Renesas Electronics America, HD64F3664H Datasheet - Page 122
HD64F3664H
Manufacturer Part Number
HD64F3664H
Description
IC H8 MCU FLASH 32K 64QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.US3664-BAG1.pdf
(446 pages)
Specifications of HD64F3664H
Core Processor
H8/300H
Core Size
16-Bit
Speed
16MHz
Connectivity
I²C, SCI
Peripherals
PWM, WDT
Number Of I /o
29
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
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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Section 6 Power-Down Modes
6.2.3
In subsleep mode, operation of the CPU and on-chip peripheral modules other than timer A is
halted. As long as a required voltage is applied, the contents of CPU registers, the on-chip RAM,
and some registers of the on-chip peripheral modules are retained. I/O ports keep the same states
as before the transition.
Subsleep mode is cleared by an interrupt. When an interrupt is requested, subsleep mode is cleared
and interrupt exception handling starts. Subsleep mode is not cleared if the I bit of CCR is set to 1
or the requested interrupt is disabled in the interrupt enable register. After subsleep mode is
cleared, a transition is made to active mode when the LSON bit in SYSCR2 is 0, and a transition is
made to subactive mode when the bit is 1.
When the RES pin goes low, the system clock pulse generator starts. Since system clock signals
are supplied to the entire chip as soon as the system clock pulse generator starts functioning, the
RES pin must be kept low until the pulse generator output stabilizes. After the pulse generator
output has stabilized, the CPU starts reset exception handling if the RES pin is driven high.
6.2.4
The operating frequency of subactive mode is selected from φ
SA0 bits in SYSCR2. After the SLEEP instruction is executed, the operating frequency changes to
the frequency which is set before the execution. When the SLEEP instruction is executed in
subactive mode, a transition to sleep mode, subsleep mode, standby mode, active mode, or
subactive mode is made, depending on the combination of SYSCR1 and SYSCR2. When the RES
pin goes low, the system clock pulse generator starts. Since system clock signals are supplied to
the entire chip as soon as the system clock pulse generator starts functioning, the RES pin must be
kept low until the pulse generator output stabilizes. After the pulse generator output has stabilized,
the CPU starts reset exception handling if the RES pin is driven high.
Rev. 6.00 Mar. 24, 2006 Page 92 of 412
REJ09B0142-0600
Subsleep Mode
Subactive Mode
W
/2, φ
W
/4, and φ
W
/8 by the SA1 and
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