參數(shù)資料
型號(hào): GMS81C5016-XXXSK
英文描述: MICROCONTROLLER|8-BIT|CMOS|DIP|28PIN|PLASTIC
中文描述: 單片機(jī)| 8位|的CMOS |雙酯| 28腳|塑料
文件頁(yè)數(shù): 76/93頁(yè)
文件大?。?/td> 853K
代理商: GMS81C5016-XXXSK
GMS81C1404/GMS81C1408
74
June. 2001 Ver 1.2
22. OTP PROGRAMMING (GMS87C1404/GMS87C1408 only)
22.1 DEVICE CONFIGURATION AREA
The Device Configuration Area can be programmed or left
unprogrammed to select device configuration such as secu-
rity bit.
Ten memory locations (0F50
H
~ 0FE0
H
) are designated as
Customer ID recording locations where the user can store
check-sum or other customer identification numbers.
This area is not accessible during normal execution but is
readable and writable during program / verify.
Figure 22-1 Device Configuration Area
Figure 22-2 Pin Assignment
DEVICE
0F50
H
0F50
H
0FF0
H
0FF0
H
ID
CONFIG
CONFIGURATION
AREA
0F60
H
ID
0F70
H
ID
0F80
H
ID
0F90
H
ID
0FA0
H
ID
0FB0
H
ID
0FC0
H
ID
0FD0
H
ID
0FE0
H
ID
-
Configuration Register
CONFIG
ADDRESS : 0FF0H
-
LOCK
-
-
-
-
PFD
LEVEL
0 Allow Code Read Out
1 : Prohibit Code Read Out
SECURITY BIT
0 : PFD Level High (2.5~3.5V)
1 : PFD Level Low (2.0~3.0V)
PFD Level Select
V
DD
1
2
3
4
5
6
7
8
9
10
28
27
26
25
24
23
22
21
20
19
11
12
13
14
18
17
16
15
V
PP
A_D0
A_D1
A_D2
A_D3
EPROM Enable
A_D7
A_D6
A_D5
A_D4
CTL2
CTL1
CTL0
V
SS
NC
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