- 您現在的位置：買賣IC網 > PDF目錄363895 > W77E516F-25 (WINBOND ELECTRONICS CORP) 8-BIT MICROCONTROLLER PDF資料下載
參數資料
| 型號： | W77E516F-25 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁數： | 26/85頁 |
| 文件大小： | 596K |
| 代理商： | W77E516F-25 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁當前第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁
Preliminary W77E516
- 26 -
WS: Wait State Signal Enable. Setting this bit enables the WAIT signal on P4.0. The device will
sample the wait state control signal WAIT via P4.0 during MOVX instruction. This bit is
time access protected.
TA
REG
C7H
C2H
8EH
WSCON
CKCON REG
MOV
TA, #AAH
MOV
TA, #55H
ORL
WSCON, #10000000B; Set WS bit and stretch value = 0 to enable wait signal.
REG
Power Management Register
Bit:
7
6
5
4
3
2
1
0
CD1
CD0
SWB
-
-
ALE-OFF
-
DME0
Mnemonic: PMR
Address: C4h
CD1, CD0: Clock Divide Control. These bit selects the number of clocks required to generate one
machine cycle. There are three modes including divide by 4, 64 or 1024. Switching
between modes must first go back divide by 4 mode. For instance, to go from 64 to
1024 clocks/machine cycle the device must first go from 64 to 4 clocks/machine cycle,
and then from 4 to 1024 clocks/machine cycle.
CD1,
0
0
1
1
CD0
0
1
0
1
Clocks/machine Cycle
Reserved
4
64
1024
SWB: Switchback Enable. Setting this bit allows an enabled external interrupt or serial port activity
to force the CD1, CD0 to divide by 4 state (0,1). The device will switch modes at the start of
the jump to interrupt service routine while a external interrupt is enabled and actually
recognized by micro controller. While a serial port reception, the switchback occurs at the
start of the instruction following the falling edge of the start bit.
ALE0FF: This bit disables the expression of the ALE signal on the device pin during all on-board
program and data memory accesses. External memory accesses will automatically
enable ALE independent of ALEOFF.
0 = ALE expression is enable; 1 = ALE expression is disable
DME0: This bit determines the on-chip MOVX SRAM to be enabled or disabled. Set this bit to 1 will
enable the on-chip 1KB MOVX SRAM.
相關PDF資料 |
PDF描述 |
|---|---|
| W77E516F-40 | 8-BIT MICROCONTROLLER |
| W77E516P-25 | 8-BIT MICROCONTROLLER |
| W77E516P-40 | 8-BIT MICROCONTROLLER |
| W77E532 | 8 BIT MICROCONTROLLER |
| W77E58 | 8 BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W77E516F-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516P-25 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516P-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E532 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 BIT MICROCONTROLLER |
| W77E532_07 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
發布緊急采購，3分鐘左右您將得到回復。