Datasheet

78K0/Kx2-L CHAPTER 14 SERIAL INTERFACE UART6 R01UH0028EJ0400 Rev.4.00 452 Sep 27, 2010
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)
TI000, INTP0
Note
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)
Output latch
(P13)
PM13
8
Selector
TXD6/
P13
R
XD6/
P14
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
Note Selectable with input switch control register (ISC).
Remark 78K0/KY2-L, 78K0/KA2-L: RxD6/SDAA0/P61, TxD6/SCLA0/P60
78K0/KB2-L, 78K0/KC2-L: RxD6/P14, TxD6/P13
(1) Receive buffer register 6 (RXB6)