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| 鍨嬭櫉锛� | PIC16F876A-E/ML |
| 寤犲晢锛� | Microchip Technology |
| 鏂囦欢闋佹暩(sh霉)锛� | 233/234闋� |
| 鏂囦欢澶�?銆�?/td> | 0K |
| 鎻忚堪锛� | IC MCU FLASH 8KX14 A/D 28QFN |
| 鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� | Asynchronous Stimulus |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 61 |
| 绯诲垪锛� | PIC® 16F |
| 鏍稿績铏曠悊鍣細 | PIC |
| 鑺珨灏哄锛� | 8-浣� |
| 閫熷害锛� | 20MHz |
| 閫ｉ€氭€э細 | I²C锛孲PI锛孶ART/USART |
| 澶栧湇瑷�(sh猫)鍌欙細 | 娆犲妾㈡脯/寰�(f霉)浣�锛孭OR锛孭WM锛學DT |
| 杓稿叆/杓稿嚭鏁�(sh霉)锛� | 22 |
| 绋嬪簭瀛樺劜鍣ㄥ閲忥細 | 14KB锛�8K x 14锛� |
| 绋嬪簭瀛樺劜鍣ㄩ鍨嬶細 | 闁冨瓨 |
| EEPROM 澶�?銆�?/td> | 256 x 8 |
| RAM 瀹归噺锛� | 368 x 8 |
| 闆诲 - 闆绘簮 (Vcc/Vdd)锛� | 4 V ~ 5.5 V |
| 鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� | A/D 5x10b |
| 鎸暕鍣ㄥ瀷锛� | 澶栭儴 |
| 宸ヤ綔婧害锛� | -40°C ~ 125°C |
| 灏佽/澶栨锛� | 28-VQFN 瑁搁湶鐒婄洡 |
| 鍖呰锛� | 绠′欢 |
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PIC16F87XA
DS39582B-page 96
2003 Microchip Technology Inc.
9.4.6.1
I2C Master Mode Operation
The master device generates all of the serial clock
pulses and the Start and Stop conditions. A transfer is
ended with a Stop condition or with a Repeated Start
condition. Since the Repeated Start condition is also
the beginning of the next serial transfer, the I2C bus will
not be released.
In Master Transmitter mode, serial data is output
through SDA while SCL outputs the serial clock. The
first byte transmitted contains the slave address of the
receiving device (7 bits) and the Read/Write (R/W) bit.
In this case, the R/W bit will be logic 鈥�0鈥�. Serial data is
transmitted 8 bits at a time. After each byte is transmit-
ted, an Acknowledge bit is received. Start and Stop
conditions are output to indicate the beginning and the
end of a serial transfer.
In Master Receive mode, the first byte transmitted con-
tains the slave address of the transmitting device
(7 bits) and the R/W bit. In this case, the R/W bit will be
logic 鈥�1鈥�. Thus, the first byte transmitted is a 7-bit slave
address followed by a 鈥�1鈥� to indicate the receive bit.
Serial data is received via SDA while SCL outputs the
serial clock. Serial data is received 8 bits at a time. After
each byte is received, an Acknowledge bit is transmit-
ted. Start and Stop conditions indicate the beginning
and end of transmission.
The baud rate generator used for the SPI mode opera-
tion is used to set the SCL clock frequency for either
100 kHz, 400 kHz or 1 MHz I2C operation. See
Section 9.4.7 鈥淏aud Rate Generator鈥� for more detail.
A typical transmit sequence would go as follows:
1.
The user generates a Start condition by setting
the Start Enable bit, SEN (SSPCON2<0>).
2.
SSPIF is set. The MSSP module will wait the
required Start time before any other operation
takes place.
3.
The user loads the SSPBUF with the slave
address to transmit.
4.
Address is shifted out the SDA pin until all 8 bits
are transmitted.
5.
The MSSP module shifts in the ACK bit from the
slave device and writes its value into the
SSPCON2 register (SSPCON2<6>).
6.
The MSSP module generates an interrupt at the
end of the ninth clock cycle by setting the SSPIF
bit.
7.
The user loads the SSPBUF with eight bits of
data.
8.
Data is shifted out the SDA pin until all 8 bits are
transmitted.
9.
The MSSP module shifts in the ACK bit from the
slave device and writes its value into the
SSPCON2 register (SSPCON2<6>).
10. The MSSP module generates an interrupt at the
end of the ninth clock cycle by setting the SSPIF
bit.
11. The user generates a Stop condition by setting
the Stop Enable bit, PEN (SSPCON2<2>).
12. Interrupt is generated once the Stop condition is
complete.
鐩搁棞(gu膩n)PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
| V72C3V3M75BG | CONVERTER MOD DC/DC 3.3V 75W |
| PIC16F876A-E/SP | IC MCU FLASH 8KX14 W/AD 28DIP |
| V72C3V3M75BF3 | CONVERTER MOD DC/DC 3.3V 75W |
| PIC16F876A-E/SO | IC MCU FLASH 8KX14 W/AD 28-SOIC |
| V72C3V3M75BF | CONVERTER MOD DC/DC 3.3V 75W |
鐩搁棞(gu膩n)浠ｇ悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉) |
鍙冩暩(sh霉)鎻忚堪 |
|---|---|
| PIC16F876A-I/ML | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 14KB 368 RAM 22 I/O RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F876A-I/ML | 鍒堕€犲晢:Microchip Technology Inc 鍔熻兘鎻忚堪:IC 8BIT FLASH MCU SMD 鍒堕€犲晢:Microchip Technology Inc 鍔熻兘鎻忚堪:IC, 8BIT FLASH MCU, SMD |
| PIC16F876A-I/MLG | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 14KB 368 RAM 22 I/O Lead Free Package RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F876A-I/SO | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 14KB 368 RAM 22 I/O RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F876A-I/SO | 鍒堕€犲晢:Microchip Technology Inc 鍔熻兘鎻忚堪:8BIT FLASH MCU SMD 16F876 SOIC28 |
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