參數(shù)資料
型號: GMS90L58
英文描述: 8-Bit CMOS Microcontroller(8位CMOS 微控制器)
中文描述: 8位CMOS微控制器(8位的CMOS微控制器)
文件頁數(shù): 52/59頁
文件大?。?/td> 812K
代理商: GMS90L58
Reading the Signature Bytes :
The GMS97x51/52 signature bytes in locations 030
H
and 031
H
, the GMS97x54/56/58 signature bytes in
locations 030
H
and 060
H
. To read these bytes follow the procedure for EPROM verify, except that P3.6
and P3.7 need to be pulled to a logic low. The values are:
Location
30H
Device
Contents
E0H
All
31H
GMS97C51/L51
73H
GMS97C52/L52
71H
60H
GMS97C54/L54
54H
GMS97C56/L56
56H
GMS97C58/L58
58H
Program / Verify algorithms
Any algorithm in agreement with the conditions listed in Table 11, and which satisfies the timing
specifications is suitable.
Table 11. EPROM programming modes
MODE
RST
PSEN
ALE/PROG
EA/V
PP
P2.7
P2.6
P3.7
P3.6
Read Signature
1
0
1
1
0
0
0
0
Program Code Data
1
0
0
V
PP
1
0
1
1
Verify Code Data
1
0
1
1
0
0
1
1
Program encryption table
1
0
0
V
PP
1
0
1
0
Program security bit 1
1
0
0
V
PP
1
1
1
1
Program security bit 2
1
0
0
V
PP
1
1
0
0
Notes :
1. "0" = Valid low for that pin, "1" = valid high for that pin.
2. Vpp = 12.75V
±
0.25V
3. Vcc = 5V
±
10% during programming and verification.
4. ALE/PROG receives 25 (10 for GMS97x54/56/58) programming pulses while V
PP
is held at 12.75.
Each programming pulse is low for 100us (
±
10us) and high for a minimum of 10us.
GMS90 Series
8-Bit CMOS Microcontroller
LG Semicon MCU
52
MAY. 1998
相關PDF資料
PDF描述
GMS97C51 8-Bit CMOS Microcontrollers(高性價比的51單片機,片內4KEPROM,128字節(jié)RAM,工作電壓5V)
GMS97C52 8-Bit CMOS Microcontrollers(高性價比的51單片機,片內8KEPROM,256字節(jié)RAM,工作電壓5V)
GMS97C54 8-Bit CMOS Microcontroller(8位CMOS 微控制器)
GMS97C56 8-Bit CMOS Microcontroller(8位CMOS 微控制器)
GMS97C58 8-Bit CMOS Microcontroller(8位CMOS 微控制器)
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