Block Diagram Of Serial Interface Uart0 - NEC 78K0 User Manual

Asynchronous serial
interface operation mode
f /2
X
register 0 (ASIM0)
3
f /2
X
5
f /2
X
8-bit timer/
event counter
50 output
7
Registers
Figure 14-1. Block Diagram of Serial Interface UART0
Asynchronous serial
Baud rate
interface reception error
generator
status register 0 (ASIS0)
Reception unit
Internal bus
Baud rate generator
Baud rate
control register 0
generator
(BRGC0)
7
*
Transmission unit
Filter
Receive shift register 0
(RXS0)
INTSR0 Reception control
Receive buffer register 0
(RXB0)
Transmit shift register 0
INTST0 Transmission control
(TXS0)
R D0/
x
SI10/P11
T D0/
x
SCK10/P10
Output latch
PM10
(P10)