HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 17
HD6433044
Manufacturer Part Number
HD6433044
Description
(HD64 Series) Hitachi Single-Chip Microcomputer
Manufacturer
Hitachi Semiconductor
Datasheet
1.HD6433044.pdf
(867 pages)
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Table 1-1 Features
Feature
CPU
Memory
Interrupt
controller
Bus controller
Description
Upward-compatible with the H8/300 CPU at the object-code level
General-register machine
• Sixteen 16-bit general registers
High-speed operation (flash memory version)
• Maximum clock rate: 16 MHz
• Add/subtract: 125 ns
• Multiply/divide: 875 ns
High-speed operation (masked ROM and PROM versions)
• Maximum clock rate: 18 MHz
• Add/subtract: 111 ns
• Multiply/divide: 778 ns
16-Mbyte address space
Instruction features
• 8/16/32-bit data transfer, arithmetic, and logic instructions
• Signed and unsigned multiply instructions (8 bits
• Signed and unsigned divide instructions (16 bits ÷ 8 bits, 32 bits ÷ 16 bits)
• Bit accumulator function
• Bit manipulation instructions with register-indirect specification of bit positions
H8/3048
• ROM: 128 kbytes
• RAM: 4 kbytes
H8/3047
• ROM: 96 kbytes
• RAM: 4 kbytes
H8/3045
• ROM: 64 kbytes
• RAM: 2 kbytes
H8/3044
• ROM: 32 kbytes
• RAM: 2 kbytes
• Seven external interrupt pins: NMI, IRQ
• 30 internal interrupts
• Three selectable interrupt priority levels
• Address space can be partitioned into eight areas, with independent bus
• Chip select output available for areas 0 to 7
• 8-bit access or 16-bit access selectable for each area
• Two-state or three-state access selectable for each area
• Selection of four wait modes
• Bus arbitration function
(also usable as + eight 16-bit registers or eight 32-bit registers)
specifications in each area
2
0
to IRQ
5
8 bits, 16 bits
16 bits)
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