參數(shù)資料
型號(hào): UPD75036CW
廠(chǎng)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): 33/58頁(yè)
文件大?。?/td> 485K
代理商: UPD75036CW
33
μ
PD75036
X
XA
BC
DE
HL
PC
SP
CY
PSW
MBE
PORTn : Port n (n = 0 to 11)
IME
: Interrupt master enable flag
IE
×××
: Interrupt enable flag
MBS
: Memory bank selection register
PCC
: Processor clock control register
.
: Address bit delimiter
(
××
)
: Contents addressed by
××
××
H
: Hexadecimal data
: X register
: Pair register (XA); 8-bit accumulator
: Pair register (BC)
: Pair register (DE)
: Pair register (HL)
: Program counter
: Stack pointer
: Carry flag; Bit accumulator
: Program status word
: Memory bank enable flag
(3) Explanation of the symbols in the addressing area field
Remarks1.
MB indicates an accessible memory bank.
2.
For *2, MB is always 0 irrespective of MBE and MBS.
3.
For *4 and *5, MB is always 15 irrespective of MBE and MBS.
4.
*6 to *10 indicate each addressable area.
MB = MBEMBS
(MBS = 0, 1, 2, 3, or 15)
MB = 0
MBE = 0: MB = 0 (00H-7FH)
MB = 15 (80H-FFH)
MBE = 1: MB = MBS (MBS = 0, 1, 2, 3, or 15)
MB = 15, fmem = FB0H-FBFH or
FF0H-FFFH
MB = 15, pmem = FC0H-FFFH
addr = 0000H-3F7FH
addr =
(Current PC) - 15 to (Current PC) - 1 or
(Current PC) + 2 to (Current PC) + 16
caddr = 0000H-0FFFH (PC
13,12
= 00B) or
1000H-1FFFH (PC
13,12
= 01B) or
2000H-2FFFH (PC
13,12
= 10B) or
3000H-3F7FH (PC
13,12
= 11B)
faddr = 0000H-07FFH
taddr = 0020H-007FH
*1
*2
*3
*4
*5
*6
*7
*8
*9
*10
Data memory
addressing
Program
memory
addressing
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