w77e58 Winbond Electronics Corp America, w77e58 Datasheet - Page 6

• Manufacturer Part Number: w77e58
• Description: 8 Bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

BLOCK DIAGRAM
P3.0
P3.7
P4.0
P4.3
P1.0
P1.7
Port
Port
Port
1
3
4
2 UARTs
Interrupt
XTAL1
Port 3
Port 4
Timer
Latch
Latch
Timer
Timer
Port 1
Latch
Oscillator
2
0
1
XTAL2
PSW
Sequencer
Bus & lock
Instruction
Controller
Decoder
ALE
T1 Register
&
ACC
PSEN
Reset Block
- 6 -
ALU
RST
SFR RAM Address
T2 Register
1KB SRAM
RAM & SFR
256 bytes
B
Pointer
Stack
Watchdog Timer
Preliminary W77E58
32KB ROM
Temp Reg.
Port 0
Addr. Reg.
Latch
Incrementor
DPTR 1
DPTR
Port 2
Latch
PC
Power monitor
Power control
V
CC
&
GND
Port
Port
0
2
Address
Bus
P2.0
P0.0
P2.7
P0.7