12
12-29
Rev.1.0
12.2.8 SIO Baud Rate Registers
■
SIO0 Baud Rate Register (S0BAUR)
<Address: H'0080 0117>
■
SIO1 Baud Rate Register (S1BAUR)
<Address: H'0080 0127>
■
SIO2 Baud Rate Register (S2BAUR)
<Address: H'0080 0137>
■
SIO3 Baud Rate Register (S3BAUR)
<Address: H'0080 0147>
■
SIO4 Baud Rate Register (S4BAUR)
<Address: H'0080 0A17>
■
SIO5 Baud Rate Register (S5BAUR)
<Address: H'0080 0A27>
■
SIO6 Baud Rate Register (S6BAUR)
<Address: H'0080 0A37>
■
SIO7 Baud Rate Register (S7BAUR)
<Address: H'0080 0A47>
D8
9
10
11
12
13
14
D15
BRG
<When reset: indeterminate>
D
Bit Name
Function
R
W
8-15
BRG
The baud rate count source selected
(Baud rate divide value)
with the SIO Mode Register is divided
by (n +1) where n = BRG divide value
set here.
BRG (Baud rate divide value) (D8-D15)
The SIO Baud Rate Registers are used to divide the baud rate count source selected with the
SIO Mode Register by (n + 1) where n is the BRG value that is set with this register.
In the initial state, the BRG value is indeterminate, so always be sure to set the divide value with
this register before using serial I/O. The value written to the BRG register while sending or
receiving data becomes effective beginning with the next cycle after the BRG counter finished
counting.
When using an internal clock in CSIO mode (i.e., producing SCLKO output signal), the internal
BCLK is first divided by the clock divider and the resulting clock frequency is divided by (n + 1)
where n = BRG set value and is further divided by 2 to produce the transmit/receive shift clock.
When using an external clock in CSIO mode, the BRG is not used (transmit/receive operations
are synchronized to an externally sourced clock).
In UART mode, the internal BCLK is first divided by the clock divider and the resulting clock
SERIAL I/O
12.2 Serial I/O Related Registers
Содержание 32172
Страница 20: ... This is a blank page 16 ...
Страница 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Страница 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Страница 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Страница 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Страница 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Страница 240: ...8 8 40 Rev 1 0 This is a blank page INPUT OUTPUT PORTS AND PIN FUNCTIONS 8 5 Precautions on Input Output Ports ...
Страница 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Страница 416: ...10 10 118 Rev 1 0 This is a blank page INPUT OUTPUT TIMERS 10 6 TOM Output Related 16 bit Timers ...
Страница 658: ...14 14 16 Rev 1 0 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 718: ...16 16 16 Rev 1 0 This is a blank page D A CONVERTERS 16 3 Functional Description of the D A Converters ...
Страница 766: ...18 18 22 Rev 1 0 WAIT CONTROLLER 18 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 777: ...CHAPTER 20 CHAPTER 20 OSCILLATION CIRCUIT 20 1 Oscillator Circuit 20 2 Clock Generator Circuit ...
Страница 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Страница 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Страница 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Страница 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 861: ...Appendix 2 1 M32R E Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...