gc80c521a CORERIVER Semiconductor, gc80c521a Datasheet - Page 47

• Manufacturer Part Number: gc80c521a
• Description: Flash / Isp / Iap 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

6.10. UART : Mode 2, Functional Diagram
(SMOD is PCON.7)
SMOD
F
1/2
1/2
OSC
0
1
Write to
RXD
SBUF
Transition
Detector
1-to-0
1/16
Read SBUF
Load SBUF
Sample
Serial Port
Interrupt
D
CL
TB8
Bit Detector
S
Q
STOP BIT
START
TX CLOCK
START
RX CLOCK
Internal BUS
Internal BUS
1/16
Zero Detector
RX CONTROL
TX CONTROL
Input Shift Register
SBUF
SBUF
SHIFT
RI
1FFh
TI
(9 bits)
SHIFT
DATA
SEND
LOAD
SBUF
MiDAS1.0B Family
Shift
TXD
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