CHAPTER
10
SERIAL IN
TER
F
ACE U
ART6
Preliminary
User’s Manual
U19014EJ
1
V0UD
225
Figure 10-1. Block Diagram of Serial Interface UART6
T
X
D6/
P13
INTST6
R
X
D6/
P14
INTSR6
INTSRE6
8
PM13
8
Transmit buffer register 6
(TXB6)
Transmit shift register 6
(TXS6)
Receive shift register 6
(RXS6)
Receive buffer register 6
(RXB6)
Filter
Output latch
(P13)
Reception control
Transmission control
Internal bus
Baud rate
generator
Baud rate
generator
Reception unit
Transmission unit
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)
Registers
Clock selection
register 6 (CKSR6)
Baud rate generator
control register 6
(BRGC6)
Selector
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
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