MC68HC05L1
MOTOROLA
11-3
CPU CORE AND INSTRUCTION SET
11
Interrupt (I)
When this bit is set, all maskable interrupts are masked. If an interrupt occurs while this bit is set,
the interrupt is latched and remains pending until the interrupt bit is cleared.
Negative (N)
When set, this bit indicates that the result of the last arithmetic, logical, or data manipulation was
negative.
Zero (Z)
When set, this bit indicates that the result of the last arithmetic, logical, or data manipulation was
zero.
Carry/borrow (C)
When set, this bit indicates that a carry or borrow out of the arithmetic logical unit (ALU) occurred
during the last arithmetic operation. This bit is also affected during bit test and branch instructions
and during shifts and rotates.
11.2
Instruction set
The MCU has a set of 62 basic instructions. They can be grouped into five different types as
follows:
–
Register/memory
–
Read/modify/write
–
Branch
–
Bit manipulation
–
Control
The following paragraphs briefly explain each type. All the instructions within a given type are
presented in individual tables.
This MCU uses all the instructions available in the M146805 CMOS family plus one more: the
unsigned multiply (MUL) instruction. This instruction allows unsigned multiplication of the contents
of the accumulator (A) and the index register (X). The high-order product is then stored in the
index register and the low-order product is stored in the accumulator. A detailed definition of the
MUL instruction is shown in Table 11-1.
TPG
93
Содержание MC68HC05T16
Страница 2: ......
Страница 14: ...MOTOROLA vi MC68HC05T16 THIS PAGE LEFT BLANK INTENTIONALLY TPG 12 ...
Страница 16: ...MOTOROLA viii MC68HC05T16 THIS PAGE LEFT BLANK INTENTIONALLY TPG 14 ...
Страница 18: ...MOTOROLA x MC68HC05T16 THIS PAGE LEFT BLANK INTENTIONALLY TPG 16 ...
Страница 26: ...MOTOROLA 2 6 MC68HC05T16 PIN DESCRIPTIONS AND INPUT OUTPUT PORTS 2 THIS PAGE LEFT BLANK INTENTIONALLY TPG 24 ...
Страница 54: ...MOTOROLA 5 12 MC68HC05T16 TIMERS 5 THIS PAGE LEFT BLANK INTENTIONALLY TPG 52 ...
Страница 64: ...MOTOROLA 6 10 MC68HC05T16 M BUS SERIAL INTERFACE 6 THIS PAGE LEFT BLANK INTENTIONALLY TPG 62 ...
Страница 92: ...MOTOROLA 10 4 MC68HC05T16 ANALOG TO DIGITAL CONVERTER 10 THIS PAGE LEFT BLANK INTENTIONALLY TPG 90 ...
Страница 106: ...MOTOROLA 11 14 MC68HC05L1 CPU CORE AND INSTRUCTION SET 11 THIS PAGE LEFT BLANK INTENTIONALLY TPG 104 ...
Страница 110: ...MOTOROLA 12 4 MC68HC05T16 LOW POWER MODES 12 THIS PAGE LEFT BLANK INTENTIONALLY TPG 108 ...
Страница 116: ...MOTOROLA 13 6 MC68HC05T16 OPERATING MODES 13 THIS PAGE LEFT BLANK INTENTIONALLY TPG 114 ...
Страница 122: ...MOTOROLA 14 6 MC68HC05T16 ELECTRICAL SPECIFICATIONS 14 THIS PAGE LEFT BLANK INTENTIONALLY TPG 120 ...
Страница 124: ...MOTOROLA 15 2 MC68HC05T16 MECHANICAL SPECIFICATIONS 15 THIS PAGE LEFT BLANK INTENTIONALLY TPG 122 ...
Страница 127: ...2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 ...