HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 117

• Manufacturer Part Number: HD6473834HV
• Description: MCU 5V 32K PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473834HV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 71
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K 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: Lead free / RoHS Compliant
• Eeprom Size: -

5.3.2
Standby mode is cleared by an interrupt (IRQ
Clearing by Interrupt: When an interrupt is requested, the system clock pulse generator starts.
After the time set in bits STS2–STS0 in SYSCR1 has elapsed, a stable system clock signal is
supplied to the entire chip, standby mode is cleared, and interrupt exception handling starts.
Operation resumes in active (high-speed) mode if MSON = 0 in SYSCR2, or active (medium-
speed) mode if MSON = 1. Standby mode is not cleared if the I bit of CCR is set to 1 or the
particular interrupt is disabled in the interrupt enable register.
Clearing by RES Input: When the RES pin goes low, the system clock pulse generator starts.
After the pulse generator output has stabilized, if the RES pin is driven high, the CPU starts reset
exception handling.
Since system clock signals are supplied to the entire chip as soon as the system clock pulse
generator starts functioning, the RES pin should be kept at the low level until the pulse generator
output stabilizes.
5.3.3
Bits STS2 to STS0 in SYSCR1 should be set as follows.
Table 5.3
STS2
0
1
Note: * Don’t care
100
When a Crystal Oscillator is Used
The table below gives settings for various operating frequencies. Set bits STS2 to STS0 for a
waiting time of at least 10 ms.
When an External Clock is Used
Any values may be set. Normally the minimum time (STS2 = STS1 = STS0 = 0) should be set.
Clearing Standby Mode
Oscillator Settling Time after Standby Mode is Cleared
STS1
0
1
*
Clock Frequency and Settling Time (Times are in ms)
STS0
0
1
0
1
*
Waiting Time
8,192 states
16,384 states
32,768 states
65,536 states
131,072 states
0
, IRQ
5 MHz
1.6
3.2
6.6
13.1
26.2
1
, WKP
4 MHz
2.0
4.1
8.2
16.4
32.8
0
to WKP
7
2 MHz
4.1
8.2
16.4
32.8
65.5
) or by input at the
1 MHz
8.2
16.4
32.8
65.5
131.1
RES
0.5 MHz
16.4
32.8
65.5
131.1
262.1
pin.