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CHAPTER 14 8-BIT SERIAL I/O
14.6
Operations of Serial Output Functions
In the 8-bit serial I/O, 8-bit serial output operation synchronized with a shift clock is
possible.
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Serial Output Operation
Serial output operation is divided into serial output operation using an internal shift clock and serial output
operation by using the external shift clock. When serial I/O operation is allowed, serial data is input in the
SDR and, at the same time, the contents of the SDR are output to the serial data output pin (SO).
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Serial output operation via internal shift clock
Serial output operation using the internal shift clock requires the settings shown in Figure 14.6-1 .
Figure 14.6-1 Settings Required for Serial Output Operation using Internal Shift Clock
When serial output operation is started, the contents of the SDR are output to the SO pin in synchronization
with the falling edge of the selected internal shift clock. In this case, the transfer destination (serial input
side) must be in the external shift clock input wait state.
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
SMR
SIOF
SIOE
SCKE
SOE
CKS1
CKS0
BDS
SST
1
SDR
SSEL
SSEL
1
1
1
1
Other than 11
Transmission data setting
: Used bit
: Set "1"
Содержание F2MC-8L F202RA
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Страница 142: ...126 CHAPTER 5 TIME BASE TIMER POPW A RETI ENDS END ...
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Страница 174: ...158 CHAPTER 7 8 BIT PWM TIMER User processing POPW A XCHW A T Restoring A and T POPW A RETI ENDS ...
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Страница 220: ...204 CHAPTER 8 8 16 BIT CAPTURE TIMER COUNTER ...
Страница 240: ...224 CHAPTER 9 12 BIT PPG TIMER ...
Страница 258: ...242 CHAPTER 10 EXTERNAL INTERRUPT CIRCUIT 1 EDGE PUSHW A User processing POPW A XCHW A T POPW A RETI ENDS END ...
Страница 274: ...258 CHAPTER 11 EXTERNAL INTERRUPT CIRCUIT 2 LEVEL ...
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Страница 371: ...355 CHAPTER 16 WILD REGISTER FUNCTION 16 3 5 Data Test Set Register WROR A test register Do not access this register ...
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Страница 419: ...403 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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