參數(shù)資料
型號： 6P8B
廠商： NEC Corp.
英文描述： MOS INTEGRATED CIRCUIT 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
中文描述： 馬鞍山集成電路4位單片機的紅外遙控傳輸
文件頁數(shù)： 6/95頁
文件大?。?/td> 692K
代理商： 6P8B
6
μ
PD6P8, 6P8A, 6P8B
Data Sheet U17848EJ3V0DS
CONTENTS
1.
PIN FUNCTIONS.........................................................................................................................
1.1
Normal Operation Mode....................................................................................................................
1.2
PROM Programming Mode...............................................................................................................
1.3
Pins I/O Circuits.................................................................................................................................
1.4
Recommended Connection of Unused Pins...................................................................................
1.5
Notes on Using K
I
Pin After Reset ...................................................................................................
8
8
10
11
12
12
2.
DIFFERENCES BETWEEN
μ
PD67A, 67B, 68A, 68B, AND
μ
PD6P8, 6P8A, 6P8B.................. 13
3.
INTERNAL CPU FUNCTIONS .................................................................................................. 14
3.1
Program Counter (PC): 11 Bits ........................................................................................................
3.2
Stack Pointer (SP): 1 Bit ...................................................................................................................
3.3
Address Stack Register (ASR (RF)): 11 Bits...................................................................................
3.4
Program Memory (One-Time PROM): 2,026 Steps
×
10 Bits .........................................................
3.5
Data Memory (RAM): 32
×
4 Bits ......................................................................................................
3.6
Data Pointer (DP): 12 Bits.................................................................................................................
3.7
Accumulator (A): 4 Bits ....................................................................................................................
3.8
Arithmetic and Logic Unit (ALU): 4 Bits..........................................................................................
3.9
Flags ...................................................................................................................................................
3.9.1
Status flag (F).......................................................................................................................... 18
3.9.2
Carry flag (CY) ........................................................................................................................ 18
14
14
14
15
16
17
17
17
18
4.
PORT REGISTERS (PX)........................................................................................................... 19
4.1
K
I/O
Port (P0).......................................................................................................................................
4.2
K
I
Port/Special Ports (P1) .................................................................................................................
4.2.1
K
I
port (P
11
: bits 4 to 7 of P1) .................................................................................................. 20
4.2.2
S
0
port (bit 2 of P1).................................................................................................................. 21
4.2.3
S
1
/LED port (bit 3 of P1).......................................................................................................... 21
4.2.4
S
2
port (bit 1 of P1).................................................................................................................. 21
4.3
Control Register 0 (P3) .....................................................................................................................
4.3.1
RAM retention flag (bit 3 of P3)............................................................................................... 23
4.4
Control Register 1 (P4) .....................................................................................................................
20
20
22
25
5.
TIMER ......................................................................................................................................... 26
5.1
Timer Configuration ..........................................................................................................................
5.2
Timer Operation.................................................................................................................................
5.3
Carrier Output....................................................................................................................................
5.3.1
Carrier output generator.......................................................................................................... 29
5.3.2
Carrier output control .............................................................................................................. 30
5.4
Software Control of Timer Output ...................................................................................................
26
27
29
32
6.
STANDBY FUNCTION............................................................................................................... 33
6.1
Outline of Standby Function ............................................................................................................
6.2
Standby Mode Setting and Release.................................................................................................
6.3
Standby Mode Release Timing ........................................................................................................
33
34
36
7.
RESET......................................................................................................................................... 37
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