HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 32

• 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: -

2.2
2.2.1
All the general registers can be used as both data registers and address registers.
When used as data registers, they can be accessed as 16-bit registers (R0 to R7), or the high bytes
(R0H to R7H) and low bytes (R0L to R7L) can be accessed separately as 8-bit registers.
When used as address registers, the general registers are accessed as 16-bit registers (R0 to R7).
R7 also functions as the stack pointer (SP), used implicitly by hardware in exception processing
and subroutine calls. When it functions as the stack pointer, as indicated in figure 2.2, SP (R7)
points to the top of the stack.
2.2.2
The CPU control registers include a 16-bit program counter (PC) and an 8-bit condition code
register (CCR).
Program Counter (PC): This 16-bit register indicates the address of the next instruction the CPU
will execute. All instructions are fetched 16 bits (1 word) at a time, so the least significant bit of
the PC is ignored (always regarded as 0).
Condition Code Register (CCR): This 8-bit register contains internal status information,
including the interrupt mask bit (I) and half-carry (H), negative (N), zero (Z), overflow (V), and
carry (C) flags. These bits can be read and written by software (using the LDC, STC, ANDC,
ORC, and XORC instructions). The N, Z, V, and C flags are used as branching conditions for
conditional branching (Bcc) instructions.
Register Descriptions
General Registers
Control Registers
SP
(R7)
Figure 2.2 Stack Pointer
Lower address side [H'0000]
Upper address side [H'FFFF]
Unused area
Stack area
15