UPD70F3208 Datasheet, PDF (23/757 Pages) NEC – 32-Bit Single-Chip Microcontrollers

LIST OF FIGURES (5/6)
Figure No.
Title
Page
17-1
17-2
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17-5
17-6
17-7
17-8
17-9
17-10
17-11
17-12
17-13
17-14
17-15
17-16
Block Diagram of CSIAn ............................................................................................................................ 503
3-Wire Serial I/O Mode Timing................................................................................................................... 518
Format of Transmit/Receive Data .............................................................................................................. 519
Transfer Bit Order Switching Circuit........................................................................................................... 520
Automatic Transmission/Reception Mode Operation Timings.................................................................... 529
Automatic Transmission/Reception Mode Flowchart ................................................................................. 530
Internal Buffer RAM Operation in 6-Byte Transmission/Reception
(in Automatic Transmission/Reception Mode)............................................................................................ 531
Automatic Transmission Mode Operation Timing ...................................................................................... 533
Automatic Transmission Mode Flowchart .................................................................................................. 534
Internal Buffer RAM Operation in 6-Byte Transmission (in Automatic Transmission Mode) ...................... 535
Repeat Transmission Mode Operation Timing........................................................................................... 537
Repeat Transmission Mode Flowchart....................................................................................................... 538
Internal Buffer RAM Operation in 6-Byte Transmission (in Repeat Transmission Mode)........................... 539
Format of CSIAn Transmit/Receive Data ................................................................................................... 541
Automatic Transmission/Reception Suspension and Restart..................................................................... 542
Automatic Data Transmit/Receive Interval Time ........................................................................................ 543
18-1
18-2
18-3
18-4
18-5
18-6
18-7
18-8
18-9
18-10
18-11
18-12
18-13
18-14
18-15
18-16
18-17
18-18
18-19
18-20
Selecting Mode of UART2 or I²C1.............................................................................................................. 544
Block Diagram of I²Cn ................................................................................................................................ 546
Serial Bus Configuration Example Using I²C Bus....................................................................................... 547
Pin Configuration Diagram ......................................................................................................................... 563
I²C Bus’s Serial Data Transfer Timing........................................................................................................ 564
Start Conditions ......................................................................................................................................... 564
Address...................................................................................................................................................... 562
Transfer Direction Specification ................................................................................................................. 566
ACK Signal................................................................................................................................................. 567
Stop Condition ........................................................................................................................................... 568
Wait Signal................................................................................................................................................. 569
Arbitration Timing Example ........................................................................................................................ 591
Communication Reservation Timing .......................................................................................................... 594
Timing for Accepting Communication Reservations................................................................................... 594
Communication Reservation Flowchart ..................................................................................................... 595
Master Operation Flowchart (1) ................................................................................................................. 597
Master Operation Flowchart (2) ................................................................................................................. 598
Slave Operation Flowchart......................................................................................................................... 599
Example of Master to Slave Communication
(When 9-Clock Wait Is Selected for Both Master and Slave) ..................................................................... 601
Example of Slave to Master Communication
(When 9-Clock Wait Is Selected for Both Master and Slave) ..................................................................... 604
19-1
19-2
19-3
Acknowledging Non-Maskable Interrupt Requests .................................................................................... 615
Non-Maskable Interrupt Servicing.............................................................................................................. 617
RETI Instruction Processing....................................................................................................................... 618
User’s Manual U15862EJ3V0UD
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