- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363897 > W78C52D (WINBOND ELECTRONICS CORP) BOX 2.13X1.38X.58 TRANS GRY PDF資料下載
參數(shù)資料
| 型號(hào)： | W78C52D |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | BOX 2.13X1.38X.58 TRANS GRY |
| 中文描述： | 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁(yè)數(shù)： | 6/18頁(yè) |
| 文件大小： | 255K |
| 代理商： | W78C52D |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)當(dāng)前第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)
Preliminary W78C52D
- 6 -
deglitch the reset line when the W78C52D 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.
New Defined Peripheral
In order to be more suitable for I/O, an extra 4-bit bit-addressable port P4 and two external interrupts
INT2
, INT3 have been added to either the PLCC or QFP package. And description follows:
1.
INT2
/ INT3
Two additional external interrupts,
INT2
and INT3 , whose functions are similar to those of external
interrupt 0 and 1 in the standard 80C52. The functions/status of these interrupts are
determined/shown by the bits in the XICON (External Interrupt Control) register. The XICON register
is bit-addressable but is not a standard register in the standard 80C52. Its address is at 0C0H. To
set/clear bits in the XICON register, one can use the "SETB (/CLR) bit" instruction. For example,
"SETB 0C2H" sets the EX2 bit of XICON.
***XICON - external interrupt control (C0H)
PX3
EX3
IE3
IT3
PX2
EX2
IE2
IT2
PX3: External interrupt 3 priority high if set
EX3: External interrupt 3 enable if set
IE3: If IT3 = 1, IE3 is set/cleared automatically by hardware when interrupt is detected/serviced
IT3: External interrupt 3 is falling-edge/low-level triggered when this bit is set/cleared by software
PX2: External interrupt 2 priority high if set
EX2: External interrupt 2 enable if set
IE2: If IT2 = 1, IE2 is set/cleared automatically by hardware when interrupt is detected/serviced
IT2: External interrupt 2 is falling-edge/low-level triggered when this bit is set/cleared by software
Eight-source interrupt informations:
INTERRUPT
SOURCE
VECTOR
ADDRESS
POLLING
SEQUENCE WITHIN
PRIORITY LEVEL
ENABLE
REQUIRED
SETTINGS
INTERRUPT
TYPE
EDGE/LEVEL
External Interrupt 0
03H
0 (highest)
IE.0
TCON.0
Timer/Counter 0
0BH
1
IE.1
-
External Interrupt 1
13H
2
IE.2
TCON.2
Timer/Counter 1
1BH
3
IE.3
-
Serial Port
23H
4
IE.4
-
Timer/Counter 2
2BH
5
IE.5
-
External Interrupt 2
33H
6
XICON.2
XICON.0
External Interrupt 3
3BH
7 (lowest)
XICON.6
XICON.3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78C52DF-24 | 8-BIT MICROCONTROLLER |
| W78C52DF-40 | 8-BIT MICROCONTROLLER |
| W78C52DP-24 | 8-BIT MICROCONTROLLER |
| W78C52DP-40 | 8-BIT MICROCONTROLLER |
| W78C52D-24 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78C52D_06 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C52D-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C52D-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C52DF-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C52DF-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。