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XVII - 11
Chapter 17 Appendices
Special Function Registers List
Bit Symbol /Initial Value /Description
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
X'3F98'
X'3F99'
X'3F9A'
Address Register Page
RXBUF17 RXBUF16 RXBUF15 RXBUF14 RXBUF13 RXBUF12 RXBUF11 RXBUF10
RXBUF1
Serial Interface 1 Reception Data Buffer
XI - 14
TXBUF17 TXBUF16 TXBUF15 TXBUF14 TXBUF13 TXBUF12 TXBUF11 TXBUF10
TXBUF1
Serial Interface 1 Transmission Data Buffer
XI - 14
SC1CE1 SC1REN SC1TRN SC1DIR SC1STE SC1LNG2 SC1LNG1 SC1LNG0
SC1MD0
Transmission/
Reception Data
Edge Selection
Reception data
Polarity Change
Specify First
Bit to be
Transfered
Transmission data
Polarity Change
Start Condition
Selection
Synchronous Serial Transfer Bit Count
Selection
XI - 15
SC1IOM SC1SBTS SC1SBIS SC1SBOS SC1CKM SC1MST - SC1CMD
SC1MD1
Data Input
Pin Selection
SBT Pin Function
Selection
Serial Input
Control
SBO Pin Function
Selection
Clock Divided
By 8 Selection
Master/Slave
Selection
Synchronous/
UART Selection
XI - 16X'3F9B'
X'3F9C'
X'3F9D'
SC1FM1 SC1FM0 SC1PM1 SC1PM0 SC1NPE - SC1BRKF SC1BRKE
SC1MD2
Specify Flame Mode Specify Added Bit Parity Enable
Break Status
Receive Monitor
Break Status
Transmit Control
XI - 17
SC1TBSY SC1RBSY SC1TEMP SC1REMP SC1FEF SC1PEK SC1ORE SC1ERE
SC1MD3
Transmission
Flag
Reception
Flag
Transfer Buffer
Empty Flag
Receive Buffer
Empty Flag
Framing Error
Detection
Parity Error
Detection
Overrun Error
Detection
Error Monitor
Flag
XI - 18
X'3F91'
X'3F92'
TXBUF07 TXBUF06 TXBUF05 TXBUF04 TXBUF03 TXBUF02 TXBUF01 TXBUF00
TXBUF0
Serial Interface 0 Data Transfer Buffer
XI - 7
SC0CE1 SC0REN SC0TRN SC0DIR SC0STE SC0LNG2 SC0LNG1 SC0LNG0
SC0MD0
Transmission/
Reception Data
Edge Selection
Reception data
Polarity Change
Specify First
Bit to be
Transfered
Transmission data
Polarity Change
Start Condition
Selection
Synchronous Serial Transfer Bit Count
Selection
XI - 8
SC0IOM SC0SBTS SC0SBIS SC0SBOS SC0CKM SC0MST - SC0CMD
SC0MD1
Data Input
Pin Selection
SBT Pin Function
Selection
Serial Input
Control
SBO Pin Function
Selection
Clock Divided
By 8 Selection
Master/Slave
Selection
Synchronous/
UART Selection
XI - 9X'3F93'
X'3F94'
X'3F95'
X'3F96'
X'3F97'
SC0FM1 SC0FM0 SC0PM1 SC0PM0 SC0NPE - SC0BRKF SC0BRKE
SC0MD2
Specify Flame Mode Specify Added Bit Parity Enable
Break Status
Receive Monitor
Break Status
Transmit Control
XI - 10
SC0TBSY SC0RBSY SC0TEMP SC0REMP SC0FEF SC0PEK SC0ORE SC0ERE
SC0MD3
Transmission
Flag
Reception
Flag
Transfer Buffer
Empty Flag
Receive Buffer
Empty Flag
Framing Error
Detection
Parity Error
Detection
Overrun Error
Detection
Error Monitor
Flag
XI - 11
-- SC0ODC1 SC0ODC0
SC0ODC
P05
Output Type
Selection
P03
Output Type
Selection
XI - 12
XI - 13
- - - - SC0PSC2 SC0PSC1 SC0PSC0
SC0CKS
Serial 0 Transfer Clock Selection
(Prescaler Output)
-
SC0ODC2
P70
Output Type
Selection
SC0ODC3
P72
Output Type
Selection
SC0SEL
I/O Type
Selection
X'3F9F'
XI - 19
- - - - - SC1PSC2 SC1PSC1 SC1PSC0
SC1CKS
Serial 1 Transfer Clock Selection
(Prescaler Output)
X'3F9E'
-
Reserved
Set Always
to "0"
-SC1SEL SC1ODC3 SC1ODC2 SC1ODC1 SC1ODC0
SC1ODC
P02
Output Type
Selection
P00
Output Type
Selection
X'3FA8'
X'3FA9'
X'3FAA'
X'3FAB'
SC3BSY SC3CE1 - SC3DIR SC3STE SC3LNG2 SC3LNG1 SC3LNG0
SC3MD0
Transmission
Flag
Transfer Edge
Selection
Specify First
Bit to be
Transfered
Start Condition
Selection
Synchronous Serial Transfer Bit Count
Selection
XII - 6
SC3IOM SC3SBTS SC3SBIS SC3SBOS - SC3MST - -
SC3MD1
Data Input
Pin Selection
SBT Pin Function
Selection
Serial Input
Control
SBO Pin Function
Selection
Master/Slave
Selection
XII - 7
IICBSY SC3STC
-
SC3REX SC3CMD SC3ACKS SC3ACK0
SC3CTR
IIC in Use
Transfer Flag
Start Condition
Detection Flag
IIC Transmission
/Reception
Status
Synchronous/
IIC Selection
ACK bit
Enable
ACK bit
Level
XII - 8
SC3TRB7 SC3TRB6 SC3TRB5 SC3TRB4 SC3TRB3 SC3TRB2 SC3TRB1 SC3TRB0
SC3TRB
Serial Interface 3 Transmission/Reception Shift Register
XII - 5
--
P73
Output Type
Selection
P75
Output Type
Selection
I/O Type
Selection
V - 9
XI - 20
V - 9
Reserved
Set Always
to "0"