Panasonic MN101C77C User Manual
Chapter 11 Serial Interface 0, 1
XI - 4
Overview
11-1-2
Block Diagram
Serial Interface 0 Block Diagram
Figure 11-1-1 Serial Interface 0 Block Diagram
Reception shift register
SBO0B/P70
SC0RIRQ
Start condition
generation circuit
3
IRQ
control
circuit
Clocl
control
circuit
match
Reception bit
counter
BUSY
generation
circuit
Received buffer
Transmission shift register
Parity bit control
circuit
Start condition
detection circuit
MUX
M U X
M U X
match
break status
received monitor
Transmission buffer
SC0MD3
SC0MD2
SC0MD1
SC0MD0
Transmission
bit counter
SC0TIRQ
0
7
SC0ERE
SC0ORE
SC0PEK
SC0FEF
SC0RBSY
SC0TBSY
SC0REMP
SC0TEMP
SC0IOM
SC0CMD
SC0SBIS
SC0SBOS
SC0SBTS
SC0CKM
0
7
SC0MST
SC0BRKF
SC0BRKE
SC0NPE
SC0PM0
SC0PM1
SC0FM0
SC0FM1
0
7
1/8
sc0psc
(prescaler output)
SC0CE1
SC0STE
SC0DIR
SC0LNG0
SC0LNG1
SC0LNG2
0
7
SC0CKM
SC0DIR
SC0STE
SC0CMD
SC0STE
Stop bit detection
circuit
Overrun error detection
SC0FM0
SC0FM1
SC0NPE
SC0FM0
SC0FM1
SC0PM0
SC0PM1
SCOSBOS
SC0SBIS
SC0BRKE
Read/Write
SC0RDB
SC0TRB
RXBUF0
TXBUF0
SWAP MSB<->LSB
SC0REN
SC0TRN
M
U
X
M
U
X
M
U
X
SB0IOM
SC0SEL
SBI0A/P04
SBI
0B/P71
SBO0A/P03
SBO0B/P70
P
O
L
SC0CE1
SBT0A/P05
M
U
X
SCOSEL
SBT0B/P72
SCOSBTS
SBO0A/P03
M
U
X
SCOSEL
}
}
}