gc80c520g CORERIVER Semiconductor, gc80c520g Datasheet - Page 34

• Manufacturer Part Number: gc80c520g
• Description: Eprom / Rom / Romless Based 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

6.10. UART : Mode 0, Functional Diagram
REN
(F
RI
OSC
S4
/ 4)
Write to
SBUF
Read SBUF
Load SBUF
Serial Port
Interrupt
D
CL
TB8
S
Q
START
TX CLOCK
RX CLOCK
START
Internal BUS
Internal BUS
1 1 1 1 1 1 1 0
Input Shift Register
Zero Detector
RX CONTROL
TX CONTROL
SBUF
SBUF
RI
TI
SHIFT
RECEIVE
SHIFT
SEND
Shift
Clock
Shift
MiDAS1.0 Family
RXD
P3.0 ALT
OUTPUT
FUNCTION
RXD
P3.0 ALT
INPUT
FUNCTION
TXD
P3.1 ALT
OUTPUT
FUNCTION
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