HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 264

• 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: -

During a transfer or while waiting for CS input, the CPU cannot read or write the data buffer. If a
read instruction is executed, H'FF will be read; if a write instruction is executed the buffer contents
will not change. In either case the wait flag (bit WT) in SCSR2 will be set.
If bit CS = 1 in PMR3 and during the transfer a high-level signal is detected at pin CS, the transfer
will immediately be aborted, setting the abort flag (bit ABT) to 1. At the same time bit IRRS2 in
interrupt request register 2 (IRR2) will be set to 1, and bit STF will be cleared to 0. Pins SCK
SO
must be cleared before resuming the transfer.
10.3.4
SCI2 can generate interrupts when a transfer is completed or when a transfer is aborted by CS.
These interrupts have the same vector address.
When the above conditions occur, bit IRRS2 in interrupt request register 2 (IRR2) is set to 1. SCI2
interrupt requests can be enabled or disabled in bit IENS2 of interrupt enable register 2 (IENR2).
For further details, see 3.3, Interrupts.
When a transfer is aborted by CS, an overrun error occurs, or a read or write of the serial data
buffer is attempted during a transfer or while waiting for CS input, the ABT, ORER, or WT bit in
SCSR2 is set to 1. These bits can be used to determine the cause of the error.
10.3.5
When an external clock is input at pin SCK
source bit STF in SCSR2 must first be set to 1 to start data transfer before inputting the external
clock.
2
will go to the high-impedance state. Data transfer is not possible while bit ABT is set to 1. It
Interrupts
Application Notes
2
, and an external clock is selected for use as the clock
2
and
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