Section 21 FSI Interface
Rev. 1.00 Apr. 28, 2008 Page 718 of 994
REJ09B0452-0100
(5)
FSI Command Usage Example 1 (SPI Flash Memory Erasure)
The FSI commands enable the execution of several instructions for the SPI flash memory. Figure
21.15 shows an example of executing the SPI flash memory erasure instruction.
FSIHBAR: H'231F
FSISR: H'00 (1 MB)
CMDHBAR: H'EFFF
STEP1
H'EFFF_F000
STEP2
H'2325_4A76
STEP3
H'EFFF_F000
CMD0 (H'10)
Host address
CMD0 (H'11)
Host address
Host address
Dummy data
FSICMDR[7:0]
Command data (H'10)
FSICMDR[7:0]
Command data (H'11)
FSICMDI
B'0
B'1
FSICMDI
B'0
B'1
B'0
B'1
B'1
B'1
FSIDMDIE
B'1
FSICMDIE
FSIDMYE
FSIDMYE
B'1
FSIDMYE
Interrupt requests
Interrupt requests
FSIAR[23:0]
H'06_4A76
→
→
→
B'0
→
Figure 21.15 SPI Flash Memory Erasure (Example)
In flash memory erasure, the SPI flash memory address is stored in FSIAR and an erasure
instruction for the SPI flash memory is executed by an SPI command. The flash memory address
storage in FSIAR is performed by writing data to the sector or block address to be erased via the
host. To distinguish the SPI flash memory erasure from the SPI flash memory programming, the
erasure is performed in the following sequence using the FSIDMYE.
Summary of Contents for H8S/2100 Series
Page 2: ...Rev 1 00 Apr 28 2008 Page ii of xxvi...
Page 54: ...Section 1 Overview Rev 1 00 Apr 28 2008 Page 28 of 994 REJ09B0452 0100...
Page 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Page 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Page 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Page 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Page 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Page 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Page 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Page 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
Page 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Page 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
Page 1020: ...Rev 1 00 Apr 28 2008 Page 994 of 994 REJ09B0452 0100...
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Page 1024: ...H8S 2117R Group Hardware Manual...