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參數(shù)資料
| 型號： | W78E51BP-24 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MTP MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 10/23頁 |
| 文件大小： | 324K |
| 代理商： | W78E51BP-24 |
Preliminary W78E51B
- 10 -
Company/Device ID Read Operation
This operation is supported for MTP ROM programmer to get the company ID or device ID on the
W78E51B.
OPERATIONS
P3.0
(A9
CTRL)
P3.1
(A13
CTRL)
P3.2
(A14
CTRL)
P3.3
(OE
CTRL)
P3.6
(
CE
)
P3.7
(
OE
)
EA
(V
PP
)
P2,P1
(A15..A0)
P0
(D7..D0)
NOTE
Read
0
0
0
0
0
0
1
Address
Data Out
Output Disable
0
0
0
0
0
1
1
X
Hi-Z
Program
0
0
0
0
0
1
V
CP
Address
Data In
Program
Verify
0
0
0
0
1
0
V
CP
Address
Data Out
@3
Erase
1
0
0
0
0
1
V
EP
A0:0,
others: X
Data In
0FFH
@4
Erase Verify
1
0
0
0
1
0
V
EP
Address
Data Out
@5
Program/Eras
e Inhibit
X
0
0
0
1
1
V
CP
/
V
EP
X
X
Company ID
1
0
0
0
0
0
1
A0 = 0
Data Out
Device ID
1
0
0
0
0
0
1
A0 = 1
Data Out
Notes:
1. All these operations happen in RST = V
IH
, ALE = V
IL
and
PSEN
= V
IH
.
2. V
CP
= 12.5V, VEP = 14.5V, V
IH
= V
DD
, V
IL
= Vss.
3. The program verify operation follows behind the program operation.
4. This erase operation will erase all the on-chip MTP-ROM cells and the Security bits.
5. The erase verify operation follows behind the erase operation.
SECURITY BITS
During the on-chip MTP-ROM operation mode, the MTP-ROM can be programmed and verified
repeatedly. Until the code inside the MTP-ROM is confirmed OK, the code can be protected. The
protection of MTP ROM and those operations on it are described below. The W78E51B has several
Special Setting Registers, including the Security Register and Company/Device ID Registers, which
can not be accessed in normal mode. These registers can only be accessed from the MTP-ROM
operation mode. Those bits of the Security Registers can not be changed once they have been
programmed from high to low. They can only be reset through erase-all operation. The contents of the
Company ID and Device ID registers have been set in factory. Both registers are addressed by the A0
address line during the same specific condition. The Security Register is addressed in the MTP-ROM
operation mode by address #0FFFFh.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78E51B-24 | 8-BIT MTP MICROCONTROLLER |
| W78E51B-40 | 8-BIT MTP MICROCONTROLLER |
| W78E51B | 8-BIT MTP Monitor Microcontroller(多次可編程的8位的監(jiān)視微控制器) |
| W78E51BF-24 | 8-BIT MTP MICROCONTROLLER |
| W78E51BF-40 | 8-BIT MTP MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78E51BP-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MTP MICROCONTROLLER |
| W78E51C | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 bit micocontroller |
| W78E51C_06 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78E51P-16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78E51P-24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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