HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 39
HD6473258P10
Manufacturer Part Number
HD6473258P10
Description
IC H8 MCU OTP 32K 64DIP
Manufacturer
Renesas Electronics America
Series
H8® H8/325r
Datasheet
1.HD6413238F10.pdf
(301 pages)
Specifications of HD6473258P10
Core Processor
H8/300
Core Size
8-Bit
Speed
10MHz
Connectivity
SCI, UART/USART
Number Of I /o
53
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
64-DIP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Peripherals
-
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Bit 2—Zero (Z): This bit is set to “1” to indicate a zero result and cleared to “0” to indicate a
nonzero result.
Bit 1—Overflow (V): This bit is set to “1” when an arithmetic overflow occurs, and cleared to
“0” at other times.
Bit 0—Carry (C): This bit is used by:
• Add and subtract instructions, to indicate a carry or borrow at the most significant bit of the
• Shift and rotate instructions, to store the value shifted out of the most significant or least
• Bit manipulation and bit load instructions, as a bit accumulator
The LDC, STC, ANDC, ORC, and XORC instructions enable the CPU to load and store the CCR,
and to set or clear selected bits by logic operations.
Some instructions leave some or all of the flag bits unchanged. The action of each instruction on
the flag bits is shown in Appendix A.1, “Instruction Set List.” See the H8/300 Series
Programming Manual for further details.
3.2.3 Initial Register Values
When the CPU is reset, the program counter (PC) is loaded from the vector table and the interrupt
mask bit (I) in the CCR is set to “1.” The other CCR bits and the general registers are not
initialized.
In particular, the stack pointer (R7) is not initialized. To prevent program crashes the stack pointer
should be initialized by software, by the first instruction executed after a reset.
result
significant bit
30
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