M16C/60

MPU & MCU

M16C Family (R32C/M32C/M16C)

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FAQ NO : 1000193 Issue Date : Oct.07.10 Functions : Watchdog Timer Once the watchdog timer starts counting, is there any way to stop it? No. Once the watchdog timer starts counting, count can only be stopped by an MCU reset. However, when count source protection mode is disabled, count will be suspended during stop mode, wait mode, bus hold, and auto-program or auto-erase operation in ... Relevant Products M16C/63 M16C/64A M16C/65 M16C/6C M16C/5L M16C/56 M16C/5LD M16C/56D M16C/5M M16C/57
FAQ NO : 106870 Issue Date : Oct.07.10 Functions : A/D Converter What is the A/D conversion rate of this microcomputer? Minimum 43 φAD cycles. * The frequency of φAD must be set as follows: When VCC1 is 4.0 V to 5.5 V, 2 MHz ≤ φAD ≤ 25 MHz When VCC1 is 3.2 V to 4.0 V, 2 MHz ≤ φAD ≤ 16 MHz When VCC1 is 3.0 V to 3.2 V, 2 MHz ≤ φAD ≤ 10 MHz Example) 1.72 µs when φAD = 25 ... Relevant Products M16C/63 M16C/64A M16C/65 M16C/6C M16C/5L M16C/56 M16C/5LD M16C/56D M16C/5M M16C/57
FAQ NO : 106893 Issue Date : Oct.07.10 Functions : Watchdog Timer When the PM12 bit in the PM1 register is set to 1 (reset when watchdog timer underflows) and the watchdog timer underflows, does the watchdog timer stop at this time? The registers associated with the watchdog timer are reset and the watchdog timer count operation stops. However, the watchdog timer automatically restarts when bit 0 of address FFFFFh is set to 0. Relevant Products M16C/63 M16C/64A M16C/65 M16C/6C M16C/5L M16C/56 M16C/5LD M16C/56D M16C/5M M16C/57
FAQ NO : 1000171 Issue Date : Sep.22.10 Functions : On-Chip Oscillator When a CPU clock is changed from a main clock to an on-chip oscillator clock, what happens to the count source of the peripheral function? For peripheral functions supplied by peripheral function clock f1, the on-chip oscillator clock becomes the count source of those peripheral functions.For peripheral functions supplied by any of peripheral clocks fOCO-S, fOCO-F, FOCO40M, fC32, or fC, ... Relevant Products M16C/63 M16C/64A M16C/65 M16C/6C M16C/5L, M16C/56 M16C/5LD, M16C/56D M16C/5M, M16C/57
FAQ NO : 1000169 Issue Date : Sep.22.10 Functions : Watchdog Timer The watchdog timer is initialized by writing 00h and then FFh to the WDTR register. Won't the watchdog timer be initialized if an interrupt is generated between these two instructions? The watchdog timer will be initialized even if an interrupt is generated between the writing of 00h and FFh. However, please note that the watchdog timer continues counting until FFh is written. Consequently, if the interrupt handling time is long, th... Relevant Products R8C/3x R8C/38A R8C/Lx R8C/Mx M16C/63 M16C/64A M16C/64C M16C/65 M16C/65C M16C/6C M16C/5L, M16C/56 M16C/5LD, M16C/56D M16C/5M, M16C/57
FAQ NO : 1000155 Issue Date : Sep.22.10 Functions : Serial Interface When only transmission is performed using serial interface UARTi, can the RxDi pin used as an I/O port? The RxDi pin can be used as an I/O port. Relevant Products M16C/62A M16C/62A(M16C/62T) M16C/62M M16C/62N M16C/62N(M3062GF8NFP, M3062GF8NGP) M16C/62P M16C/63 M16C/64A M16C/65 M16C/6C M16C/5L, M16C/56 M16C/5LD, M16C/56D M16C/5M, M16C/57 M16C/30P M16C/29 M16C/28 M16C/26A
FAQ NO : 106020 Issue Date : Sep.22.10 Functions : Serial Interface Is input or output of the TxDi and RxDi pins determined automatically according to the setting of the serial I/O mode select bit? The TxDi pin is fixed to output mode. The RxDi pin can be set to input mode by setting the port direction register to "0" (input). Relevant Products M32C/87 M16C/62A M16C/62A(M16C/62T) M16C/62M M16C/62N M16C/62N(M3062GF8NFP, M3062GF8NGP) M16C/62P M16C/63 M16C/64A M16C/65 M16C/6C M16C/6N4, M16C/6N5 M16C/6NK, M16C/6NL, M16C/6NM, M16C/6NN M16C/5L, M16C/56 M16C/5LD, M16C/56D M16C/5M, M16C/57 M16C/30P M16C/29 M16C/28 M16C/26A M16C/1N
FAQ NO : 102061 Issue Date : Sep.22.10 Functions : Serial Interface When only reception is performed using serial interface UARTi, can the TxDi pin used as an I/O port? The TxDi pin cannot be used as an I/O port. It functions only as a serial data I/O port. Relevant Products M16C/62A M16C/62A(M16C/62T) M16C/62M M16C/62N M16C/62N(M3062GF8NFP, M3062GF8NGP) M16C/62P M16C/63 M16C/64A M16C/65 M16C/6C M16C/6N4, M16C/6N5 M16C/6NK, M16C/6NL, M16C/6NM, M16C/6NN M16C/5L, M16C/56 M16C/5LD, M16C/56D M16C/5M, M16C/57 M16C/30P M16C/29 M16C/28 M16C/26A M16C/1N
FAQ NO : 102062 Issue Date : Sep.22.10 Functions : Serial Interface Please explain how to terminate the data transfer and initialize the serial interface. To terminate the data transmission in process and initialize the serial interface, follow the setting procedure below. Set the TE bit in the UiC1 register to "0", and the RE bit to "0". Set bits SMD0 to SMD2 in the UiMR register to "000b". Set bits... Relevant Products R8C/18 R8C/19 R8C/1A R8C/1B R8C/20 R8C/21 R8C/22 R8C/23 R8C/24 R8C/25 R8C/26 R8C/27 R8C/28 R8C/29 R8C/2A R8C/2B R8C/2C R8C/2D R8C/2E R8C/2F R8C/2G R8C/2H R8C/2J R8C/2K R8C/2L R8C/38A R8C/32C R8C/33C R8C/35C R8C/36C R8C/38C R8C/3GC R8C/3JC R8C/32D R8C/33D R8C/35D R8C/3GD R8C/33T R8C/34E, R8C/34F, R8C/34G, R8C/34H R8C/36E, R8C/36F, R8C/36G, R8C/36H R8C/38E, R8C/38F, R8C/38G, R8C/38H M32C/8A M32C/88 M32C/87 M32C/85 M32C/84 M32C/83 M32C/80 M16C/62A M16C/62A(M16C/62T) M16C/62M M16C/62N M16C/62N(M3062GF8NFP, M3062GF8NGP) M16C/62P M16C/63 M16C/64A M16C/65 M16C/6C M16C/6N4, M16C/6N5 M16C/6NK, M16C/6NL, M16C/6NM, M16C/6NN M16C/5L, M16C/56 M16C/5LD, M16C/56D M16C/5M, M16C/57 M16C/30P M16C/29 M16C/28 M16C/26A M16C/1N
FAQ NO : 102839 Issue Date : Sep.22.10 Functions : Serial Interface Can the CTS and RTS functions be used simultaneously? Yes, CTS0 and RTS0 can be used simultaneously by using the CTS/RTS separate function of UART0. Relevant Products M16C/62P M16C/63 M16C/64A M16C/65 M16C/6C M16C/30P M16C/29 M16C/28 M16C/26A

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