CHAPTER 12 SERIAL INTERFACE FUNCTION
Preliminary User’s Manual U15905EJ1V0UD
331
(7) Serial clock counter
The serial clock counter counts serial clocks that are output or input during transmit and receive operations
and checks that 8-bit data has been transmitted or received.
(8) Interrupt controller
The interrupt controller controls whether or not an interrupt request is generated when the serial clock counter
has counted eight serial clocks.
Figure 12-17. Clocked Serial Interface Block Diagram
Selector
CKSn0 to CKSn2
INTCSIn
CSOTn
SOn
Transfer clock controller
Transfer mode controller
Transfer data controller
Transmit buffer (SOTBn)
Selector
SOn latch
SIn
SCKn
Shift register (SIOn)
f
XX
/2
f
XX
/4
f
XX
/8
f
XX
/16
f
XX
/32
f
XX
/64
TOFm
CSIEn, TRMDn, DIRn,
CKPn, DAPn
Remarks 1.
m = 2 when n = 0
m = 3 when n = 1
m = 4 when n = 2
m = 5 when n = 3
m = 5 when n = 4 (V850ES/SA3 only)
2.
f
XX
: Main clock frequency
Содержание V850ES/SA2 UPD703201
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