upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 566
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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Chapter 17
566
Initial setting (CBnCTL0
CBnCTL1 registers, etc.)
Write CBnTX register
INTCBnR bit = 1?
(start transfer).
START
Yes
Caution
CBnTXE bit = CBnRXE bit = 0
Transmission/reception
Reception
Transmission
Note
Note 1
CBnPWR bit = 0,
Transfer end?
(3)
(CBnCTL0)
,
END
No
Yes
Single transmission/reception
1.
2.
Even in the single mode, the CBnSTR.CBnOVE flag is set to 1. If only
transmission is used in the transmission/reception mode, therefore,
programming without checking the CBnOVE flag is recommended.
Preliminary User’s Manual U17566EE1V2UM00
B
A
Write CBnTX register
Set the CBnSCE bit to 1 in the initial setting.
If the next transfer is reception only, dummy data is written to the CBnTX
register.
No
Note 2
.
Read CBnRX register.
Transfer end?
B
Yes
Write CBnTX register
No
Note 2
.
Read CBnRX register.
Clocked Serial Interface (CSIB)
Transfer end?
A
Yes
Write CBnTX register
No
Note 2
.
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