參數(shù)資料
型號(hào): UPD75517GF
廠商: NEC Corp.
英文描述: 4 BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁(yè)數(shù): 145/180頁(yè)
文件大小: 1596K
代理商: UPD75517GF
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145
μ
PD75517(A)
Addressing
fmem.bit
pmem.@L
@H+mem.bit
Specifiable bit address range
FB0H to FBFH
FF0H to FFFH
FC0H to FFFH
All the bits of the memory bank specified by
MB (bit-manipulatable)
Specifiable peripheral hardware
RBE/MBE/IST1, IST0/EOT
IE
×××
/IRQ
×××
Port 0 to Port 15
BSB0
Ports 0, 4, 8, and 12
All the peripheral hardware (bit-
manipulatable)
Since PC does not increment the counter during execution of a GETI instruction, control returns to the
address next to the GETI instruction after the execution of the GETI instruction.
When the instruction before a GETI instruction has the skip function, the GETI instruction is skipped in
the same way as for other 1-byte instructions. When the instruction referenced by a GETI instruction has
the skip function, the instructions after the GETI instruction are skipped.
When a string effect instruction is referenced by a GETI instruction, the following results are obtained.
When the group of the string effect instruction before the GETI instruction is the same as that of the
instruction referenced by the GETI instruction, the effect of the string effect instruction is canceled and
the referenced instruction is not skipped.
When the group of the instruction after the GETI instruction is the same as that of the instruction
referenced by the GETI instruction, the effect of the string effect instruction caused by the referenced
instruction is valid and the instructions after the referenced instruction are skipped.
(2) Bit manipulation instructions
The
μ
PD75517(A) is provided with bit test instructions, bit transfer instructions, and bit Boolean instruc-
tions (AND, OR, and XOR) in addition to normal bit manipulation instructions (set instruction and clear
instruction). Manipulation bits are specified by bit manipulation addressing.
There are three types of bit manipulation addressing. The table below lists the bits manipulated by each
addressing.
×××
: 0, 1, 2, 4, BT, T0, W, CSI0, TPG
MB = MBEMBS
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