Datasheet
RL78/L12 CHAPTER 12 SERIAL ARRAY UNIT
R01UH0330EJ0200 Rev.2.00 384
Dec 13, 2013
Figure 12-1 shows the block diagram of the serial array unit.
Figure 12-1. Block Diagram of Serial Array Unit
PRS
013
4
PRS
003
PRS
012
PRS
011
PRS
010
PRS
002
PRS
001
PRS
000
4
f
CLK
f
CLK
/2
0
to f
CLK
/2
15
f
CLK
/2
0
to f
CLK
/2
15
CKS00
CCS00
STS00 MD001
00
SOE01 SOE00
PM10
SAU0EN
0
0
SE01 SE00
0
0
ST01 ST00
0
0
SS01 SS00
TXE
00
RXE
00
DAP
00
CKP
00
EOC
00
PECT
00
OVCT
00
PTC
001
SLC
000
PTC
000
DIR
00
SLC
001
DLS
001
DLS
000
TSF
00
OVF
00
BFF
00
PEF
00
CK01
CK00
f
MCK
f
TCLK
f
SCK
CK01
CK00
SNFEN
00
SNFEN00
PM12
0
0
0 SOL00
00
CKO01 CKO00
00
SO01 SO00
0
0
00
0
0
00
Serial output
enable register 0
(SOE0)
Serial channel
enable status
register 0 (SE0)
Serial channel
stop register 0
(ST0)
Serial channel
start register 0
(SS0)
Noise filter enable
register 0 (NFEN0)
SSEC0
SWC0
Serial standby
control register 0
(SSC0)
Serial output level
register 0 (SOL0)
Serial output register 0 (SO0)
Serial clock select register 0 (SPS0)
Selector
Selector
Peripheral enable
register 0 (PER0)
Prescaler
Shift register
Serial data register 00 (SDR00)
(Buffer register block)
(Clock division setting block)
Output latch
(P12)
Selector
Clock controller
Selector
Interrupt
controller
Output
controller
Communication controller
Serial flag clear trigger
register 00 (SIR00)
Communication
status
Error
information
Clear
Serial status register 00 (SSR00)
Error controller
Channel 0
(LIN-bus
supported)
Channel 1
(LIN-bus
supported)
Edge/level
detection
Serial communication operation setting register 00 (SCR00)
When UART0
Serial mode register 00 (SMR00)
Communication controller
Error controller
Edge/level
detection
Output latch
(P10)
Mode selection
CSI00 or UART0
(for transmission)
Serial data output pin
(when CSI00: SO00)
(when UART0: T
X
D0)
Serial transfer end interrupt
(when CSI00: INTCSI00)
(when UART0: INTST0)
Edge
detection
Serial clock I/O pin
(when CSI00: SCK00)
Serial data input pin
(when CSI00: SI00)
(when UART0: RxD0)
Serial transfer end interrupt
(when CSI01: INTCSI01)
(when UART0: INTSR0)
Mode selection
CSI01or UART0
(for reception)
Serial transfer error interrupt
(INTSRE0)
Serial data output pin
(when CSI01: SO01)
Serial data input pin
(when CSI01: SI01)
Serial clock I/O pin
(when CSI01: SCK01)
Selector
Noise
elimination
enabled/
disabled
Synchro-
nous
circuit
Synchro-
nous
circuit
Synchro-
nous
circuit
<R>