Datasheet

CHAPTER 14 SERIAL INTERFACE UART6
User’s Manual U18698EJ1V0UD
340
Figure 14-4. Block Diagram of Serial Interface UART6
Internal bus
Asynchronous serial interface
control register 6 (ASICL6)
Transmit buffer register 6
(TXB6)
Transmit shift register 6
(TXS6)
INTST6
Baud rate
generator
Asynchronous serial interface
control register 6 (ASICL6)
Reception control
Receive shift register 6
(RXS6)
Receive buffer register 6
(RXB6)
INTSR6
Baud rate
generator
Filter
INTSRE6
Asynchronous serial
interface reception error
status register 6 (ASIS6)
Asynchronous serial
interface operation mode
register 6 (ASIM6)
Asynchronous serial
interface transmission
status register 6 (ASIF6)
Transmission control
Registers
8
Reception unit
Transmission unit
Clock selection
register 6 (CKSR6)
Baud rate generator
control register 6
(BRGC6)
8
Selector
RxD6/P12/RxD0/KR3
INTP0
TI000
ISC1 ISC0
ISC5 ISC4
Input switch control register (ISC)
Input switch control register (ISC)
Selector
Selector
Output latch
(P13)
PM13
Selector
UART0
output
signal
PF13
Port function
register 1 (PF1)
Selector
ISC5 ISC4
TxD6/P112/SEG6
RxD6/P113/SEG7
T
X D6/P13/TxD0/KR4
f PRS
f PRS /2
f
PRS /2
2
f PRS /2
3
f PRS /2
4
f PRS /2
5
f PRS /2
6
f PRS /2
7
f PRS /2
8
f PRS /2
9
f PRS /2
10
8-bit timer/
event counter
50 output
f XCLK6
PM112
Output latch
(P112)