CHAPTER 15 CLOCKED SERIAL INTERFACE 0 (CSI0)
User’s Manual U16896EJ2V0UD
435
Figure 15-1. Block Diagram of Clocked Serial Interface
Selector
Transmission control
SO selection
SO latch
Transmit
buffer register
(SOTBn/SOTBnL)
Receive buffer register
(SIRBn/SIRBnL)
Shift register
(SIO0n/SIO0nL)
Initial transmit
buffer register
(SOTBFn/SOTBFnL)
Interrupt
controller
Clock start/stop control
&
clock phase control
Serial clock controller
SCK0n
INTCSI0n
SO0n
SI0n
Control signal
Transmission data control
f
XX
/2
6
f
XX
/2
5
f
XX
/2
4
f
XX
/2
3
f
XX
/2
2
f
XX
/2
TO5n
SCK0n
Remarks 1.
n = 0, 1
2.
f
XX
: Main clock frequency