W77E468 Просмотр технического описания (PDF) - Winbond
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производитель
W77E468 Datasheet PDF : 84 Pages
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Preliminary W77E468
BLOCK DIAGRAM
P1.0
P1.7
P3.0
P3.7
P6.0
P6.3
P5.0 - P5.7
P4.0 - P4.7
Port 5
Port
5
Latch
Port
1
Port 1
Latch
Port 4
Latch
Port 4
ACC
B
T1 Register T2 Register
Port 0
Port
Latch
0
P0.0
P0.7
Interrupt
Timer
2
PSW
ALU
Stack
Pointer
DPTR
DPTR 1
Temp Reg.
A0-A15
Addr.
Bus
Timer
0
Timer
1
2 UARTs
Instruction
Decoder
&
Sequencer
SFR RAM Address
256 bytes
RAM & SFR
PC
Incrementor
Addr. Reg.
32KB ROM
D0-D7
Data
Bus
1KB SRAM
Port 3
Bus & clock
Port
Latch
Controller
3
P2.0
Port 2
Port
Latch
2
P2.7
Port 6
Latch
Oscillator
Port
6
Reset Block
Power control
&
Power monitor
Watchdog Timer
XTAL1 XTAL2 ALE PSEN RST
VCC GND
-4-
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