HD6473837H Renesas Electronics America, HD6473837H Datasheet - Page 121
HD6473837H
Manufacturer Part Number
HD6473837H
Description
IC H8 MCU OTP 60K 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet
1.HD6473837HV.pdf
(562 pages)
Specifications of HD6473837H
Core Processor
H8/300L
Core Size
8-Bit
Speed
5MHz
Connectivity
SCI
Peripherals
LCD, PWM
Number Of I /o
84
Program Memory Size
60KB (60K x 8)
Program Memory Type
OTP
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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5.7
5.7.1
If the MSON bit in SYSCR2 is set to 1 while the LSON bit in SYSCR1 is cleared to 0, a transition
to active (medium-speed) mode results from IRQ
mode, timer A, IRQ
A transition to active (medium-speed) mode does not take place if the I bit of CCR is set to 1 or
the particular interrupt is disabled in the interrupt enable register.
5.7.2
Active (medium-speed) mode is cleared by a SLEEP instruction or by a input at the RES pin.
Clearing by SLEEP Instruction: A transition to standby mode takes place if a SLEEP
instruction is executed while the SSBY bit in SYSCR1 is set to 1, the LSON bit in SYSCR1 is
cleared to 0, and TMA3 bit in TMA is cleared to 0. The system goes to watch mode if the SSBY
bit in SYSCR1 is set to 1 and TMA3 bit in TMA is set to 1 when a SLEEP instruction is executed.
Sleep mode is entered if both SSBY and LSON are cleared to 0 when a SLEEP instruction is
executed. Direct transfer to active (high-speed) mode or to subactive mode is also possible. See
5.8, Direct Transfer, below for details.
Clearing by RES Pin: When the RES pin goes low, the CPU enters the reset state and active
(medium-speed) mode is cleared.
5.7.3
In active (medium-speed) mode, the CPU is clocked at 1/8 the frequency in active (high-speed)
mode.
5.8
5.8.1
The CPU can execute programs in three modes: active (high-speed) mode, active (medium-speed)
mode, and subactive mode. A direct transfer is a transition among these three modes without the
stopping of program execution. A direct transfer can be made by executing a SLEEP instruction
while the DTON bit in SYSCR2 is set to 1. After the mode transition, direct transfer interrupt
exception handling starts.
104
Active (medium-speed) Mode
Transition to Active (medium-speed) Mode
Clearing Active (medium-speed) Mode
Operating Frequency in Active (medium-speed) Mode
Direct Transfer
Direct Transfer Overview
0
, or WKP
0
to WKP
7
interrupts in watch mode, or any interrupt in sleep mode.
0
, IRQ
1
, or WKP
0
to WKP
7
interrupts in standby
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