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| 型號(hào)： | MC9S08RE60FGE |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 39/234頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 60K FLASH 8MHZ 44-LQFP |
| 標(biāo)準(zhǔn)包裝： | 160 |
| 系列： | S08 |
| 核心處理器： | S08 |
| 芯體尺寸： | 8-位 |
| 速度： | 8MHz |
| 連通性： | SCI |
| 外圍設(shè)備： | LVD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 39 |
| 程序存儲(chǔ)器容量： | 60KB（60K x 8） |
| 程序存儲(chǔ)器類(lèi)型： | 閃存 |
| RAM 容量： | 2K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.8 V ~ 3.6 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 44-LQFP |
| 包裝： | 托盤(pán) |
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Timer/PWM (TPM)
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
Freescale Semiconductor
133
independently be congured to operate in input capture, output compare, or buffered edge-aligned PWM
mode.
The following sections describe the main 16-bit counter and each of the timer operating modes (input
capture, output compare, edge-aligned PWM, and center-aligned PWM). Because details of pin operation
and interrupt activity depend on the operating mode, these topics are covered in the associated mode
sections.
10.5.1
Counter
All timer functions are based on the main 16-bit counter (TPM1CNTH:TPM1CNTL). This section
discusses selection of the clock source, up-counting vs. up-/down-counting, end-of-count overow, and
manual counter reset.
After any MCU reset, CLKSB:CLKSA = 0:0 so no clock source is selected and the TPM is inactive.
Normally, CLKSB:CLKSA would be set to 0:1 so the bus clock drives the timer counter. The clock source
for the TPM can be selected to be off, the bus clock (BUSCLK), the xed system clock (XCLK), or an
external input through the TPM1CH0 pin. The maximum frequency allowed for the external clock option
is one-fourth the bus rate. Refer to Section 10.7.1, “Timer Status and Control Register (TPM1SC),” and
Table 10-2 for more information about clock source selection.
When the microcontroller is in active background mode, the TPM temporarily suspends all counting until
the microcontroller returns to normal user operating mode. During stop mode, all TPM clocks are stopped;
therefore, the TPM is effectively disabled until clocks resume. During wait mode, the TPM continues to
operate normally.
The main 16-bit counter has two counting modes. When center-aligned PWM is selected (CPWMS = 1),
the counter operates in up-/down-counting mode. Otherwise, the counter operates as a simple up-counter.
As an up-counter, the main 16-bit counter counts from $0000 through its terminal count and then continues
with $0000. The terminal count is $FFFF or a modulus value in TPM1MODH:TPM1MODL.
When center-aligned PWM operation is specied, the counter counts upward from $0000 through its
terminal count and then counts downward to $0000 where it returns to up-counting. Both $0000 and the
terminal count value (value in TPM1MODH:TPM1MODL) are normal length counts (one timer clock
period long).
An interrupt ag and enable are associated with the main 16-bit counter. The timer overow ag (TOF) is
a software-accessible indication that the timer counter has overowed. The enable signal selects between
software polling (TOIE = 0) where no hardware interrupt is generated, or interrupt-driven operation
(TOIE = 1) where a static hardware interrupt is automatically generated whenever the TOF ag is 1.
The conditions that cause TOF to become set depend on the counting mode (up or up/down). In
up-counting mode, the main 16-bit counter counts from $0000 through $FFFF and overows to $0000 on
the next counting clock. TOF becomes set at the transition from $FFFF to $0000. When a modulus limit
is set, TOF becomes set at the transition from the value set in the modulus register to $0000. When the
main 16-bit counter is operating in up-/down-counting mode, the TOF ag gets set as the counter changes
direction at the transition from the value set in the modulus register and the next lower count value. This
corresponds to the end of a PWM period. (The $0000 count value corresponds to the center of a period.)
相關(guān)PDF資料 |
PDF描述 |
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| VE-26T-IY-F3 | CONVERTER MOD DC/DC 6.5V 50W |
| MC9S08RE60CFJE | IC MCU 60K FLASH 8MHZ 32-LQFP |
| VE-26T-IY-F2 | CONVERTER MOD DC/DC 6.5V 50W |
| MC9S08RE60CFGE | IC MCU 60K FLASH 8MHZ 44-LQFP |
| VE-26R-IY-F4 | CONVERTER MOD DC/DC 7.5V 50W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC9S08RE60FJ | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:Microcontrollers |
| MC9S08RE60FJE | 功能描述:IC MCU 60K FLASH 8MHZ 32-LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:S08 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:8KB（8K x 8） 程序存儲(chǔ)器類(lèi)型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱(chēng):864285 |
| MC9S08RE60PE | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC9S08RE8 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC9S08RE8CDWE | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Microcontrollers |
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