M30302MC 데이터 시트보기 (PDF) - Renesas Electronics

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M30302MC

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Renesas Electronics 

Reset

Mitsubishi microcomputers

M16C / 30 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

(1) Processor mode register 0 (Note 1)

(000416)···

0016

(20) UART1 transmit interrupt control register (005316)···

?0 0 0

(2) Processor mode register 1

(000516)··· 0 0 0 0 0

0 (21) UART1 receive interrupt control register (005416)···

?0 0 0

(3) System clock control register 0

(000616)··· 0 1 0 0 1 0 0 0 (22) Timer A0 interrupt control register

(005516)···

?0 0 0

(4) System clock control register 1

(000716)··· 0 0 1 0 0 0 0 0 (23) Timer A1 interrupt control register

(005616)···

?0 0 0

(5) Chip select control register

(000816)··· 0 0 0 0 0 0 0 1 (24) Timer A2 interrupt control register

(005716)···

?0 0 0

(6) Address match interrupt enable register (000916)···

0 0 (25) Timer B1 interrupt control register

(005B16)···

?0 0 0

(7) Protect register

(000A16)···

0 0 0 (26) Timer B2 interrupt control register

(005C16)···

?0 0 0

(8) Watchdog timer control register

(000F16)··· 0 0 0 ? ? ? ? ? (27) INT0 interrupt control register

(005D16)···

0 0 ?0 0 0

(9) Address match interrupt register 0

(001016)···

0016

(28) INT1 interrupt control register

(005E16)···

0 0 ?0 0 0

(001116)···

0016

(29) INT2 interrupt control register

(005F16)···

0 0 ?0 0 0

(001216)···

0 0 0 0 (30) Interrupt cause select register

(035F16)···

0016

(10) Address match interrupt register 1

(001416)···

0016

(31) UART2 special mode register 3 (Note 2) (037516)···

?

(001516)···

0016

(32) UART2 special mode register 2

(037616)···

0016

(001616)···

0 0 0 0 (33) UART2 special mode register

(037716)···

0016

(11) DMA0 control register

(002C16)··· 0 0 0 0 0 ? 0 0 (34) UART2 transmit/receive mode register (037816)···

0016

(12) Bus collision detection interrupt

control register

(13) DMA0 interrupt control register

(004A16)···

(004B16)···

? 0 0 0 (35) UART2 transmit/receive control register 0 (037C16)··· 0 0 0 0 1 0 0 0

? 0 0 0 (36) UART2 transmit/receive control register 1 (037D16)··· 0 0 0 0 0 0 1 0

(14) Key input interrupt control register

(004D16)···

? 0 0 0 (37) Count start flag

(038016)···

0016

(15) A-D conversion interrupt control register (004E16)···

? 0 0 0 (38) Clock prescaler reset flag

(038116)··· 0

(16) UART2 transmit interrupt control register (004F16)···

? 0 0 0 (39) One-shot start flag

(038216)··· 0 0 0 0 0 0 0

(17) UART2 receive interrupt control register (005016)···

? 0 0 0 (40) Trigger select flag

(038316)···

0016

(18) UART0 transmit interrupt control register (005116)···

? 0 0 0 (41) Up-down flag

(038416)···

0016

(19) UART0 receive interrupt control register (005216)···

?0 0 0

x : Nothing is mapped to this bit

? : Undefined

The content of other registers are undefined when the microcomputer is reset. The initial values must therefore be set.

The RAM is undefined at power on. The initial values must therefore be set. When a reset signal is applied while the

CPU is writing a value to the RAM, the value may be set as unknown due to the termination of the CPU access.

Note 1: When the VCC level is applied to the CNVSS pin, it is 0316 at a reset.

Note 2: “0016” is read out when set bit 7 (SDDS) of the UART2 special mode register ( address 037716) to “1”.

Figure 1.5.3. Device's internal status after a reset is cleared

16

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