UPD75216ACW

Manufacturer Part NumberUPD75216ACW
Description4-BIT SINGLE-CHIP MICROCOMPUTER
ManufacturerNEC
UPD75216ACW datasheet
 


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Page 21
22
Page 22
23
Page 23
24
Page 24
25
Page 25
26
Page 26
27
Page 27
28
Page 28
29
Page 29
30
Page 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
Page 27/72:

POWER-ON FLAG (MASK OPTION)

Download datasheet (524Kb)Embed
PrevNext
5.9

POWER-ON FLAG (MASK OPTION)

The power-on flag (PONF) is automatically set (1) when the power-on reset circuit is activated and the power-
on reset signal is generated (See Fig. 8-1 Reset Signal Generator).
The PONF is mapped at bit 0 of address FD1H in the data memory space and can be tested by the memory bit
manipulation instructions (SKT, SKF, SKTCLR) or cleared (CLR1).
Note
The PONF cannot be set by SET1 instruction.
PD75216A
27