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參數資料
| 型號： | W78E354 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MONITOR MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數： | 11/45頁 |
| 文件大?。?/td> | 430K |
| 代理商： | W78E354 |
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W78E354
Publication Release Date: April 1997
- 11 -
Revision A1
FUNCTIONAL DESCRIPTION
A. 80C31 Core
The W78E354's 80C31 (CMOS MCU) core architecture consists of a CPU surrounded by various
Special Function Registers or SFRs. Some of these SFRs are standard 80C31 registers while others
are new additions, cf. Table 1. The device includes three general purpose I/O ports (P1, P2 and P3),
one output-only port (P4), 256 bytes of scratchpad RAM, two timer/counters (Timer0 and Timer1) and
one 8051 standard serial port. The processor supports 109 different instructions (without "MOVX
A,@DPTR" and "MOVX @DPTR,A") all of which are compatible with those of the MCS-51 family.
One distinguishing feature of the device architecture is the SFR address space into which all the
registers, peripherals and scratchpad RAM are mapped. Many of the instructions operate on an SFR
address rather than a specific register, greatly increasing the power of the instruction set.
The core controller has been designed around a state machine rather than utilizing a microcode
approach, a design methodology which offers several advantages. The first of these is that faster
circuits can be produced due to the fact that flip-flops are inherently faster than ROMs. Secondly, a
ROM-free approach allows the design to be directly utilized in ASIC gate array implementations, an
important factor for cost reductions. Finally, an entire digital logic approach provides better supply
noise immunity in most applications.
Table 1. W78E354's Special Function Registers (SFRs)
F8
FF
F0
+ B
F7
E8
EF
E0
+ ACC
E7
D8
+ S1CON
S1STA
S1DAT
S1ADR
DF
D0
+ PSW
D7
C8
+
CONTREG4
CF
C0
C7
B8
+ IP
SBRM0
SBRM1
PORT4
SOAREG
SOACLR
BF
B0
+ P3
ADC
INTVECT
STATUS
HFCOUNTL
HFCOUNTH
VFCOUNTL
VFCOUNTH
B7
A8
+ IE
SDAC7
SDAC8
SDAC9
SDAC10
SDAC11
SDAC12
SDAC13
AF
A0
+ P2
SDAC0
SDAC1
SDAC2
SDAC3
SDAC4
SDAC5
SDAC6
A7
98
+ SCON
SBUF
BSDAC0
BSDAC1
WDTCLR
DDAC0
DDAC1
DDAC2
9F
90
+ P1
AUTOLOAD
DHREG
DVREG
DDC1
INTMSK
BDDAC
DBRM
97
88
+ TCON
TMOD
TL0
TL1
TH0
TH1
PARAL
PARAH
8F
80
+
CONTREG1
SP
DPL
DPH
CONTREG5
CONTREG2
CONTREG3
PCON
87
Notes:
1. The SFRs with a "+" are both byte- and bit-addressable.
2. The registers in the shaded region are new additions to the 80C31 SFRs.
A.1 Address Space (cf. Figure 1)
The W78E354 CPU operates out of three separate address spaces:
相關PDF資料 |
PDF描述 |
|---|---|
| W78E354P | MONITOR MICROCONTROLLER |
| W78E51BP-24 | 8-BIT MTP MICROCONTROLLER |
| 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位的監視微控制器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W78E354P | 制造商:WINBOND 制造商全稱:Winbond 功能描述:MONITOR MICROCONTROLLER |
| W78E365 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-bit microcontroller |
| W78E365_07 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78E365-24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| W78E365-40 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
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