Renesas RL78/G15 User Manual

CHAPTER 17 SELECTABLE POWER-ON-RESET CIRCUIT ....................................... 644
17.1 Functions of Selectable Power-on-reset Circuit ........................................................................... 644
17.2 Configuration of Selectable Power-on-reset Circuit ..................................................................... 645
17.3 Operation of Selectable Power-on-reset Circuit ........................................................................... 646
17.4 Cautions for Selectable Power-on-reset Circuit ........................................................................... 647
CHAPTER 18 OPTION BYTE ....................................................................................... 648
18.1 Functions of Option Bytes ............................................................................................................ 648
18.1.1 User option byte (000C0H to 000C2H) .............................................................................. 648
18.1.2 On-chip debug option byte (000C3H) ................................................................................ 648
18.2 Format of User Option Byte .......................................................................................................... 649
18.3 Format of On-chip Debug Option Byte ......................................................................................... 652
18.4 Setting of Option Byte ................................................................................................................... 653
CHAPTER 19 FLASH MEMORY ................................................................................... 654
19.1 Serial Programming Using Flash Memory Programmer ............................................................... 656
19.1.1 Programming environment ................................................................................................. 658
19.1.2 Communication mode ........................................................................................................ 658
19.2 Writing to Flash Memory by Using External Device (that Incorporates UART) ............................ 660
19.2.1 Programming environment ................................................................................................. 660
19.2.2 Communication mode ........................................................................................................ 661
19.3 Connection of Pins on Board ........................................................................................................ 662
19.3.1 P40/TOOL0 pin .................................................................................................................. 662
19.3.2 RESET
¯¯¯¯¯¯
pin ......................................................................................................................... 663
19.3.3 Port pins ............................................................................................................................. 663
19.3.4 X1 and X2 pins (16-pin and 20-pin products) .................................................................... 663
19.3.5 Power supply ...................................................................................................................... 664
19.4 Serial Programming Method ......................................................................................................... 665
19.4.1 Serial programming procedure .......................................................................................... 665
19.4.2 Flash memory programming mode .................................................................................... 666
19.4.3 Selecting communication mode ......................................................................................... 667
19.4.4 Communication commands ............................................................................................... 667
19.5 Processing Time for Each Command When PG-FP5 Is in Use (Reference Values) ................... 668
19.6 Self-Programming ......................................................................................................................... 669
19.6.1 Registers controlling self-programming ............................................................................. 669
19.6.1.1 Flash address pointer registers H and L (FLAPH, FLAPL) ..................................... 670
19.6.1.2 Flash end address specification registers H and L (FLSEDH, FLSEDL) ............... 671
19.6.1.3 Flash write buffer registers HH, HL, LH, and LL
(FLWHH, FLWHL, FLWLH, FLWLL) ....................................................................... 673
19.6.1.4 Flash programming mode control register (FLPMC) .............................................. 674
19.6.1.5 Flash memory sequencer initial setting register (FSSET) ...................................... 675
19.6.1.6 Flash memory sequencer control register (FSSQ) ................................................. 676
19.6.1.7 Flash memory sequencer status registers H and L (FSASTH, FSASTL) ............... 677

Renesas RL78/G15 Specifications

General

Brand	Renesas
Model	RL78/G15
Category	Microcontrollers
Language	English