W78ERD2 Datasheet, PDF (40/72 Pages) Winbond – 8-BIT MICROCONTROLLER

W78ERD2
Timer 1
Overflow
Timer 2
Overflow
2
SMOD = 0 1
TCLK _{0 1}
16
RCLK
01
16
SAMPLE
1-TO-0
DETECTOR
RXD
Write to
SBUF
TB8
Internal
Data Bus
TX START TX SHIFT
TX CLOCK
TI
SERIAL
CONTROLLER ^RI
STOP
D8
PARIN
START ^SOUT
LOAD
CLOCK
Transmit Shift Register
TXD
Serial Port
Interrupt
RX CLOCK
RX
START
LOAD
SBUF
RX SHIFT
BIT
DETECTOR
CLOCK
PAROUT
SBUF
SIN
D8
RB8
Receive Shift Register
Read
SBUF
Internal
Data
Bus
Serial Port Mode 3
Serial Ports Modes
SM1 SM0 Mode Type
Baud Clock
0
0
0
Synch.
12 TCLKS
0
1
1
Asynch.
Timer 1 or 2
1
0
2
Asynch. 32 or 64 TCLKS
1
1
3
Asynch.
Timer 1 or 2
Frame
Size
8 bits
10 bits
11 bits
11 bits
Start
Bit
No
1
1
1
Stop
Bit
No
1
1
1
9th bit
Function
None
None
0, 1
0, 1
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