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参数资料
| 型号： | M38507F8AFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PDSO42 |
| 封装： | 8.40 X 17.50 MM, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件页数： | 35/59页 |
| 文件大小： | 885K |
| 代理商： | M38507F8AFP |
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Rev.2.13
Apr 17, 2009
Page 40 of 56
REJ03B0125-0213
3850 Group (Spec.A QzROM version)
Fig 46. State transitions of system clock
CM4 : Port XC switch bit
0 : I/O port function (stop oscillating)
1 : XCIN-XCOUT oscillating function
CM5 : Main clock (XIN-XOUT) stop bit
0 : Operating
1 : Stopped
CM7, CM6: Main clock division ratio selection bit
b7 b6
00 :
φ = f(XIN)/2 (High-speed mode)
01 :
φ = f(XIN)/8 (Middle-speed mode)
10 :
φ = f(XCIN)/2 (Low-speed mode)
1 1 : Not available
Reset
CM
4
“1
”←→
”0
”
C
M
4
“0
”
←
→
”1
”
C
M
6
“1
”
←
→
”0
”
C
M
4
“1
”←
→
”0
”
C
M
6
“1
”←
→
”0
”
CM
7
“1
”←→
”0
”
CM
4
“1
”←→
”0”
CM
5
“1”
←→
”0
”
CM6
“1”
←→”0”
CM6
“1”
←→”0”
CPU mode register
(CPUM : address 003B16)
b7
b4
C
M
7
“0
”
←
→
”1
”
C
M
6
“1
”
←
→
”0”
High-speed mode
(f(
φ) = 4 MHz)
CM7=0
CM6=0
CM5=0 (8 MHz oscillating)
CM4=0 (32 kHz stopped)
High-speed mode
(f(
φ) = 4 MHz)
CM7=0
CM6=0
CM5=0 (8 MHz oscillating)
CM4=1 (32 kHz oscillating)
Notes1: Switch the mode by the allows shown between the mode blocks. (Do not switch between the modes directly without an allow.)
2: The all modes can be switched to the stop mode or the wait mode and return to the source mode when the stop mode or the wait mode is ended.
3: Timer operates in the wait mode.
4: After STP instruction is released, the count source which had set by bit 2 (timer 12 count source selection bit) of the timer count source set register
at executing the STP instruction is supplied to timer 1. Accordingly, when bit 0 of MISRG is “0” and the timer 12 count source selection bit is “0”
(f(XIN)/16 or f(XCIN)/16), a delay of approximately 1 ms occurs automatically in the high/middle-speed mode. A delay of approximately 256 ms
occurs automatically in the low-speed mode (at f(XIN) = 8 MHz, f(XCIN) = 32 kHz). When the timer 12 count source selection bit is “1” (f(X CIN)), a
delay of approximately 16 ms occurs regardless of the operation mode.
5: Wait until oscillation stabilizes after oscillating the main clock X IN before the switching from the low-speed mode to middle/high-speed mode.
6: When the mode is switched to the middle-speed mode by the middle-speed mode automatic switch set bit of MISRG, the waiting time set by the
middle-speed mode automatic switch wait time set bit is automatically generated, and then the mode is switched to the middle-speed mode.
7: The example assumes that 8 MHz is being applied to the XIN pin and 32 kHz to the XCIN pin.
φ indicates the internal clock.
Middle-speed mode
automatic switch start bit
“1”
Middle-speed mode
automatic switch set bit
“1”
Middle-speed mode
(f(
φ) = 1 MHz)
CM7=0
CM6=1
CM5=0 (8 MHz oscillating)
CM4=0 (32 kHz stopped)
Middle-speed mode
(f(
φ) = 1 MHz)
CM7=0
CM6=1
CM5=0 (8 MHz oscillating)
CM4=1 (32 kHz oscillating)
Low-speed mode
(f(
φ) = 16 kHz)
CM7=1
CM6=0
CM5=0 (8 MHz oscillating)
CM4=1 (32 kHz oscillating)
Low-speed mode
(f(
φ) = 16 kHz)
CM7=1
CM6=0
CM5=1 (8 MHz stopped)
CM4=1 (32 kHz oscillating)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M38507F8AFP#U1 | 功能描述:IC 740/3850 MCU FLASH 42SSOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 产品培训模块:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 标准包装:1 系列:M16C™ M32C/80/87 核心处理器:M32C/80 芯体尺寸:16/32-位 速度:32MHz 连通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外围设备:DMA，POR，PWM，WDT 输入/输出数:121 程序存储器容量:384KB（384K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:24K x 8 电压 - 电源 (Vcc/Vdd):3 V ~ 5.5 V 数据转换器:A/D 34x10b，D/A 2x8b 振荡器型:内部 工作温度:-20°C ~ 85°C 封装/外壳:144-LQFP 包装:托盘 产品目录页面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M38507F8AFP#W1 | 制造商:Renesas Electronics Corporation 功能描述:MCU 3/5V 32K PB-FREE 42-SSOP T&R - Tape and Reel |
| M38507F8FP | 制造商:Renesas Electronics Corporation 功能描述:MCU 8-Bit 740 CISC 32KB Flash 5V 42-Pin SSOP 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB FLASH 5V 42SSOP - Trays |
| M38507F8FP#U1 | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB FLASH 5V 42SSOP - Trays |
| M38507F8FP#W1 | 制造商:Renesas Electronics Corporation 功能描述:FLASH 8-BIT 2.7 TO 5.5V PBFREE |
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