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M37905M4C-XXXSP Datasheet(PDF) 6 Page - Mitsubishi Electric Semiconductor |
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M37905M4C-XXXSP Datasheet(HTML) 6 Page - Mitsubishi Electric Semiconductor |
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6 / 102 page  M37905M4C-XXXFP, M37905M4C-XXXSP M37905M6C-XXXFP, M37905M6C-XXXSP M37905M8C-XXXFP, M37905M8C-XXXSP PRELIMINAR Y Notice: This is not a final specification. Some parametric limits are subject to change. 16-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS 6 Fig. 1 (1) Memory map of M37905M4C-XXXFP/SP (Single-chip mode) BASIC FUNCTION BLOCKS These microcomputers contain the following devices in the single chip: ROM, RAM, CPU, bus interface unit, and peripheral devices such as the interrupt control circuit, timers, serial I/O, A-D converter, D-A converter, I/O ports, clock generating circuit, etc. MEMORY Figures 1 (1) through (3) show the memory maps. The address space is 64 Kbytes from addresses 016 through FFFF16. This ad- dress space is called “bank 016”. The internal ROM and RAM are allocated as shown in Figures 1 (1) through (3). Addresses FFB416 through FFFF16 contain the RESET and the in- terrupt vector addresses, and the interrupt vectors are stored there. For details, refer to the section on interrupts. Allocated to addresses 016 through FF16 are peripheral devices such as I/O ports, A-D converter, D-A converter, serial I/O, timers, interrupt control registers, etc. Figures 2 and 3 show the location of SFRs. INT4 A-D conversion Reserved area Reserved area Address matching detect Reserved area INT5 INT6 INT7 Timer A5 UART1 transmit UART1 receive UART0 transmit UART0 receive Timer B2 Timer B1 Timer B0 Interrupt vector table Timer A4 Timer A3 Timer A2 Timer A1 Timer A0 Watchdog timer BRK instruction Zero divide INT3 INT2 INT1 INT0 Received area RESET DBC 00000016 Bank 016 00FFFF16 00000016 000C0016 0000FF16 00FFFE16 00FFB416 Internal RAM 1024 bytes Internal ROM 32 Kbytes Peripheral devices' control registers 000FFF16 00100016 000BFF16 Unused area Unused area 007FFF16 00800016 00FFB416 00FFFF16 Timer A6 Timer A7 Timer A8 Timer A9 UART2 receive UART2 transmit 00000016 0000FF16 Peripheral devices' control registers (See Figures 2 and 3.) 00010016 |
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