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参数资料
| 型号： | DS83C530-ENL |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Microcontroller |
| 英文描述： | 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQFP52 |
| 封装： | TQFP-52 |
| 文件页数： | 20/44页 |
| 文件大小： | 754K |
| 代理商： | DS83C530-ENL |
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DS87C530/DS83C530
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This results in a true representation of the EPROM while the Encryption is unprogrammed (FFh). Once
the Encryption Array is programmed in a non-FFh state, the verify value will be encrypted.
For encryption to be effective, the Encryption Array must be unknown to the party that is trying to verify
memory. The entire EPROM also should be a non-FFh state or the Encryption Array can be discovered.
The Encryption Array is programmed as shown in Table 10. Note that the programmer can not read the
array. Also note that the verify operation always uses the Encryption Array. The array has no impact
while FFh. Simply programming the array to a non-FFh state will cause the encryption to function.
OTHER EPROM OPTIONS
The DS87C530 has user selectable options that must be set before beginning software execution. These
options use EPROM bits rather than SFRs.
Program the EPROM selectable options as shown in Table 10. The Option Register sets or reads these
selections. The bits in the Option Control Register have the following function:
Bit 7 -4 Reserved, program to a 1.
Bit 3 Watchdog POR default. Set=1; Watchdog reset function is disabled on power-up. Set=0; Watchdog
reset function is enabled automatically.
Bit 2-0 Reserved. Program to a 1.
SIGNATURE
The Signature bytes identify the product and programming revision to EPROM programmers. This
information is at programming addresses 30h, 31h, and 60h. This information is as follows::
Address
Value
Meaning
30h
DAh
Manufacturer
31h
30h
Model
60h
01h
Extension
EPROM PROGRAMMING MODES Table 10
MODE
RST
PSEN
ALE/ PROG
EA/VPP
P2.6
P2.7
P3.3
P3.6
P3.7
Program Code Data
H
L
PL
12.75V
L
HHHH
Verify Code Data
H
L
H
L
H
Program Encryption
Array Address 0-3Fh
H
L
PL
12.75V
L
H
L
H
LB1
H
L
PL
12.75V
H
HHHH
LB2
H
L
PL
12.75V
H
L
Program Lock
Bits
LB3
H
L
PL
12.75V
H
L
H
L
Program Option
Register Address FCh
H
L
PL
12.75V
L
H
L
Read Signature or
Option Registers 30,
31, 60, FCh
H
L
H
L
LLLL
* PL indicates pulse to a logic low.
相关PDF资料 |
PDF描述 |
|---|---|
| DS87C530-ECL | 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQFP52 |
| DS87C520-MCL | 8-BIT, OTPROM, MICROCONTROLLER, PDIP40 |
| DS87C520-QNL | 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC44 |
| DS87C520-QCL | 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC44 |
| DS87C520-ECL | 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQFP44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS83C530-ENL+ | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock |
| DS83C530-QCL | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:EPROM/ROM Micro with Real Time Clock |
| DS83C530-QCL+ | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock |
| DS83C530-QNL | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock |
| DS83C530-QNL+ | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock |
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