M16C/62 Group DATASHEET

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Appendix Standard Serial I/O Mode (Flash Memory Version)Mitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERPage Read CommandThis command reads the specified page (256 bytes) in the flash memory sequentially one byte at atime. Execute the page read command as explained here following.(1) Send the “FF16” command code in the 1st byte of the transmission.(2) Send addresses A8 to A15 and A16 to A23 in the 2nd and 3rd bytes of the transmission respectively.(3) From the 4th byte onward, data (D0–D7) for the page (256 bytes) specified with addresses A8 toA23 will be output sequentially from the smallest address first in sync with the rise of the clock.CLK1RxD1(M16C reception data)FF16A8 toA15A16 toA23TxD1(M16C transmit data)data0data255RTS1(BUSY)Figure 1.31.3. Timing for page readRead Status Register CommandThis command reads status information. When the “7016” command code is sent in the 1st byte of thetransmission, the contents of the status register (SRD) specified in the 2nd byte of the transmissionand the contents of status register 1 (SRD1) specified in the 3rd byte of the transmission are read.CLK1RxD1(M16C reception data)7016TxD1(M16C transmit data)SRDoutputSRD1outputRTS1(BUSY)Figure 1.31.4. Timing for reading the status register257
Appendix Standard Serial I/O Mode (Flash Memory Version)Mitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERClear Status Register CommandThis command clears the bits (SR3–SR5) which are set when the status register operation ends inerror. When the “5016” command code is sent in the 1st byte of the transmission, the aforementionedbits are cleared. When the clear status register operation ends, the RTS1 (BUSY) signal changesfrom the “H” to the “L” level.CLK1RxD1(M16C reception data)5016TxD1(M16C transmit data)RTS1(BUSY)Figure 1.31.5. Timing for clearing the status registerPage Program CommandThis command writes the specified page (256 bytes) in the flash memory sequentially one byte at atime. Execute the page program command as explained here following.(1) Send the “4116” command code in the 1st byte of the transmission.(2) Send addresses A8 to A15 and A16 to A23 in the 2nd and 3rd bytes of the transmission respectively.(3) From the 4th byte onward, as write data (D0–D7) for the page (256 bytes) specified with addressesA8 to A23 is input sequentially from the smallest address first, that page is automatically written.When reception setup for the next 256 bytes ends, the RTS1 (BUSY) signal changes from the “H” tothe “L” level. The result of the page program can be known by reading the status register. For moreinformation, see the section on the status register.Each block can be write-protected with the lock bit. For more information, see the section on the dataprotection function. Additional writing is not allowed with already programmed pages.CLK1RxD1(M16C reception data)4116 A8 to A16 toA15 A23data0 data255TxD1(M16C transmit data)RTS1(BUSY)Figure 1.31.6. Timing for the page program258
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Customer Interface Publication: KCH
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DescriptionMitsubishi microcomputer
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DescriptionMitsubishi microcomputer
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Pin DescriptionMitsubishi microcomp
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MemoryMitsubishi microcomputersM16C
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Bus SettingsMitsubishi microcompute
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Bus ControlMitsubishi microcomputer
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Clock Generating CircuitMitsubishi
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DMACMitsubishi microcomputersM16C /
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Timer BMitsubishi microcomputersM16
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Serial I/OMitsubishi microcomputers
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Clock synchronous serial I/O modeMi
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Clock asynchronous serial I/O (UART
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UART2 Special Mode RegisterMitsubis
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UART2 Special Mode RegisterMitsubis
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UART2 Special Mode Register 2Mitsub
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UART2 Special Mode Register 2Mitsub
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S I/O3, 4Mitsubishi microcomputersM
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CRCMitsubishi microcomputersM16C /
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Programmable I/O PortMitsubishi mic
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Usage precautionMitsubishi microcom
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Usage precautionMitsubishi microcom
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Operating maximum frequency [MHZ]Op
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Electrical characteristics (Vcc = 5
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Timing (VCC=5V)Mitsubishi microcomp
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Timing (Vcc = 5V)Mitsubishi microco
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Electrical characteristics (Vcc = 3
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