Table of contents
11.3.4 Transmit operation ...................................................................................................11-26
11.3.5 Method of reception .................................................................................................11-28
11.3.6 Receive operation ....................................................................................................11-31
11.3.7 Processing on detecting overrun error..................................................................11-34
[Precautions for clock synchronous serial I/O mode] ....................................................11-35
11.4 Clock asynchronous serial I/O (UART) mode...........................................................11-36
11.4.1 Transfer rate (Frequency of transfer clock) .........................................................11-37
11.4.2 Transfer data format ................................................................................................11-39
11.4.3 Method of transmission ...........................................................................................11-40
11.4.4 Transmit operation ...................................................................................................11-44
11.4.5 Method of reception .................................................................................................11-47
11.4.6 Receive operation ....................................................................................................11-50
11.4.7 Processing on detecting error ................................................................................11-52
11.4.8 Sleep mode ...............................................................................................................11-53
[Precautions for clock asynchronous serial I/O (UART) mode]....................................11-54
CHAPTER 12. A-D CONVERTER
12.1 Overview .............................................................................................................................. 12-2
12.2 Block description .............................................................................................................. 12-4
12.2.1 A-D control registers 0, 1 ......................................................................................... 12-5
12.2.2 A-D register i (i = 0 to 4) ......................................................................................... 12-8
12.2.3 Comparator function select register 0, comparator result register 0.................. 12-9
12.2.4 A-D conversion interrupt control register..............................................................12-10
12.2.5 Port P7 direction register ........................................................................................12-11
12.3 A-D conversion method .................................................................................................12-12
12.4 Absolute accuracy and Differential non-linearity error..........................................12-15
12.4.1 Absolute accuracy ....................................................................................................12-15
12.4.2 Differential non-linearity error .................................................................................12-16
12.5 Comparison voltage in 8-bit resolution mode..........................................................12-17
12.6 Comparator function .......................................................................................................12-18
12.7 One-shot mode.................................................................................................................12-19
12.7.1 Settings for one-shot mode ....................................................................................12-19
12.7.2 One-shot mode operation .......................................................................................12-21
12.8 Repeat mode.....................................................................................................................12-22
12.8.1 Settings for repeat mode ........................................................................................12-22
12.8.2 Repeat mode operation...........................................................................................12-24
12.9 Single sweep mode.........................................................................................................12-25
12.9.1 Settings for single sweep mode ............................................................................12-25
12.9.2 Single sweep mode operation ................................................................................12-27
12.10 Repeat sweep mode 0..................................................................................................12-28
12.10.1 Settings for repeat sweep mode 0 ......................................................................12-28
12.10.2 Repeat sweep mode 0 operation ........................................................................12-30
[Precautions for A-D converter]............................................................................................12-31
CHAPTER 13. D-A CONVERTER
13.1 Overview .............................................................................................................................. 13-2
13.2 Block description .............................................................................................................. 13-2
13.2.1 D-A control register ................................................................................................... 13-3
13.2.2 D-A Register i (i = 0, 1) ........................................................................................... 13-3
7906 Group User’s Manual Rev.2.0
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RENESAS [ RENESAS TECHNOLOGY CORP ]
