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參數(shù)資料
| 型號： | W78E56B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 8-BIT Microcontroller(8位的微控制器) |
| 中文描述： | 8位微控制器（8位的微控制器） |
| 文件頁數(shù)： | 6/26頁 |
| 文件大?。?/td> | 224K |
| 代理商： | W78E56B |
W78E516B
- 6 -
to clear the B7 bit of security register. Once B7 is set to 0, a half of gain will be decreased. Care must
be taken if user attempts to diminish the gain of oscillator amplifier, reducing a half of gain may affect
the external crystal operating improperly at high frequency above 24 MHz. The value of R and C1, C2
may need some adjustment while running at lower gain.
Reset
The external RESET signal is sampled at S5P2. To take effect, it must be held high for at least two
machine cycles while the oscillator is running. An internal trigger circuit in the reset line is used to
deglitch the reset line when the W78E516B is used with an external RC network. The reset logic also
has a special glitch removal circuit that ignores glitches on the reset line. During reset, the ports are
initialized to FFH, the stack pointer to 07H, PCON (with the exception of bit 4) to 00H, and all of the
other SFR registers except SBUF to 00H. SBUF is not reset.
W78E516B Special Function Registers (SFRs) and Reset Values
F8
FF
F0
+B
00000000
CHPENR
00000000
F7
E8
EF
E0
+ACC
00000000
+P4
xxxx1111
+PSW
00000000
+T2CON
00000000
XICON
00000000
+IP
00000000
+P3
00000000
+IE
00000000
+P2
11111111
+SCON
00000000
+P1
11111111
+TCON
00000000
+P0
11111111
E7
D8
DF
D0
D7
C8
RCAP2L
00000000
RCAP2H
00000000
TL2
00000000
SFRAL
00000000
TH2
00000000
SFRAH
00000000
CF
C0
SFRFD
00000000
SFRCN
00000000
CHPCON
0xx00000
C7
B8
BF
B0
B7
A8
AF
A0
A7
98
SBUF
xxxxxxxx
9F
90
97
88
TMOD
00000000
SP
00000111
TL0
00000000
DPL
00000000
TL1
00000000
DPH
00000000
TH0
00000000
TH1
00000000
8F
80
PCON
00110000
87
Notes:
1.The SFRs marked with a plus sign(+) are both byte- and bit-addressable.
2. The text of SFR with bold type characters are extension function registers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78E516BP-24 | 8-BIT MICROCONTROLLER |
| W78E516BP-40 | 8-BIT MICROCONTROLLER |
| W78E516 | 8-BIT MICROCONTROLLER |
| W78E516B | 8-BIT MICROCONTROLLER |
| W78E516B-24 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78E58 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78E58-16 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78E58-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78E58-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78E58B | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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