参数资料
型号: M34238MK-XXXGP
元件分类: 微控制器/微处理器
英文描述: 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封装: PLASTIC, SOP-20
文件页数: 19/41页
文件大小: 243K
代理商: M34238MK-XXXGP
Parameter
Type of
instruction
Mnemonic
Instruction code
Hexadecimal
notation
D8
D7
D6
D5
D4
D3
D2
D1
D0
Number
of
w
ords
Number
of
cycles
Functions
MITSUBISHI MICROCOMPUTERS
4238 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
1
TAC
TCA
OCRA
CLD
SD
RD
OEA
OGA
IAE
IAG
SPUE
NOP
POF
SNZP
TMCA
SNZMF
CCK
SKW
RKW
TLOA
LGOP
(A2 – A0)
← (C2 – C0)
(C2 – C0)
← (A2 – A0)
(CARR)
← (A3)
(D)
← 1
(D(Y))
← 1, where (Y) = 0 to 7
(D(Y))
← 0, where (Y) = 0 to 7
(E)
← (A3)
(G)
← (A)
(A0)
← (E)
(A)
← (G)
Port E pull-up transistor ON.
(PC)
← (PC) + 1
RAM back-up
(P) = 1 ?
(MC)
← (A3)
(MF) = 1?
Instruction clock = f(XIN)/4
Key-on wakeup function added (Port E)
Key-on wakeup function not used
(Port E)
(LO)
← (A1, A0)
Logic operation instruction
(XOR, OR, AND)
0010
000
00
0010
110
10
0100
001
10
0000
100
01
0000
101
01
0000
101
00
0100
001
00
0100
000
00
0010
101
10
0001
010
00
0100
011
11
0000
000
00
0000
011
01
0000
000
11
0010
110
11
0010
000
10
0010
110
01
0000
001
01
0000
001
00
0010
110
00
0010
000
01
04
0
05
A
08
6
01
1
01
5
01
4
08
4
08
0
05
6
02
8
08
F
00
0
00
D
00
3
05
B
04
2
05
9
00
5
00
4
05
8
04
1
Input/Output
operations
Other
operations
Carrier
wave
control
operations
25
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