參數(shù)資料
型號(hào): W78E516BP-24
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, 24 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 4/26頁
文件大?。?/td> 224K
代理商: W78E516BP-24
W78E516B
- 4 -
BLOCK DIAGRAM
P3.0
P3.7
P1.0
P1.7
ALU
Port 0
Latch
Port 1
Latch
Timer
1
Timer
0
Timer
2
Port
1
UART
XTAL1
PSEN
ALE
Vss
VCC
RST
XTAL2
Oscillator
Interrupt
PSW
Instruction
Decoder
&
Sequencer
Reset Block
Bus & Clock
Controller
SFR RAM
Address
Power control
512 bytes
RAM & SFR
Stack
Pointer
B
Addr. Reg.
Incrementor
PC
DPTR
Temp Reg.
T2
T1
ACC
Port 3
Latch
Port 4
Latch
Port
3
Port 2
Latch
P4.0
P4.3
Port
4
Port
0
Port
P2.0
P2.7
P0.0
P0.7
64KB
MTP-ROM
M4KB
FUNCTIONAL DESCRIPTION
The W78E516B architecture consists of a core controller surrounded by various registers, four
general purpose I/O ports, one special purpose programmable 4-bits I/O port, 512 bytes of RAM,
three timer/counters, a serial port and an internal 74373 latch and 74244 buffer which can be
switched to port2. The processor supports 111 different opcodes and references both a 64K program
address space and a 64K data storage space.
RAM
The internal data RAM in the W78E516B is 512 bytes. It is divided into two banks: 256 bytes of
scratchpad RAM and 256 bytes of AUX-RAM. These RAMs are addressed by different ways.
RAM 0H
127H can be addressed directly and indirectly as the same as in 8051. Address pointers
are R0 and R1 of the selected register bank.
RAM 128H
255H can only be addressed indirectly as the same as in 8051. Address pointers are
R0, R1 of the selected registers bank.
相關(guān)PDF資料
PDF描述
W78E516BP-40 8-BIT MICROCONTROLLER
W78E516 8-BIT MICROCONTROLLER
W78E516B 8-BIT MICROCONTROLLER
W78E516B-24 8-BIT MICROCONTROLLER
W78E516B-40 8-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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