2C Bus Definitions and Control Methods" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� UPD78F1146AF1-AN1-A
寤犲晢锛� Renesas Electronics America
鏂囦欢闋佹暩(sh霉)锛� 439/880闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� MCU 16BIT 78K0R/KX3 64-FBGA
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 300
绯诲垪锛� 78K0R/Kx3
鏍稿績铏曠悊鍣細 78K/0R
鑺珨灏哄锛� 16-浣�
閫熷害锛� 20MHz
閫i€氭€э細 3 绶� SIO锛孖²C锛孡IN锛孶ART/USART
澶栧湇瑷�(sh猫)鍌欙細 DMA锛孡VD锛孭OR锛孭WM锛學DT
杓稿叆/杓稿嚭鏁�(sh霉)锛� 50
绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 256KB锛�256K x 8锛�
绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 闁冨瓨
RAM 瀹归噺锛� 12K x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 1.8 V ~ 5.5 V
鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� A/D 8x10b
鎸暕鍣ㄥ瀷锛� 鍏�(n猫i)閮�
宸ヤ綔婧害锛� -40°C ~ 85°C
灏佽/澶栨锛� 64-VFBGA
鍖呰锛� 鎵樼洡
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CHAPTER 12 SERIAL INTERFACE IIC0
User鈥檚 Manual U17854EJ9V0UD
492
12.5 I
2C Bus Definitions and Control Methods
The following section describes the I
2C bus鈥檚 serial data communication format and the signals used by the I2C bus.
Figure 12-13 shows the transfer timing for the 鈥渟tart condition鈥�, 鈥渁ddress鈥�, 鈥渄ata鈥�, and 鈥渟top condition鈥� output via the
I
2C bus鈥檚 serial data bus.
Figure 12-13. I
2C Bus Serial Data Transfer Timing
SCL0
SDA0
Start
condition
Address R/W
ACK
Data
1-7
8
9
1-8
ACK
Data
ACK
Stop
condition
9
1-8
9
The master device generates the start condition, slave address, and stop condition.
The acknowledge (ACK) can be generated by either the master or slave device (normally, it is output by the device
that receives 8-bit data).
The serial clock (SCL0) is continuously output by the master device. However, in the slave device, the SCL0鈥檚 low
level period can be extended and a wait can be inserted.
12.5.1 Start conditions
A start condition is met when the SCL0 pin is at high level and the SDA0 pin changes from high level to low level.
The start conditions for the SCL0 pin and SDA0 pin are signals that the master device generates to the slave device
when starting a serial transfer. When the device is used as a slave, start conditions can be detected.
Figure 12-14. Start Conditions
SCL0
SDA0
H
A start condition is output when bit 1 (STT0) of IIC control register 0 (IICC0) is set (to 1) after a stop condition has
been detected (SPD0: Bit 0 = 1 in IIC status register 0 (IICS0)). When a start condition is detected, bit 1 (STD0) of
IICS0 is set (to 1).
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
UPD78F1156AGC-GAD-AX MCU 16BIT 78K0R/KX3 80-LQFP
UPD78F1168AGF-GAS-AX MCU 16BIT 78K0R/KX3 100-LQFP
UPD78F1178AGF-GAT-AX MCU 16BIT 78K0R/KX3 128-LQFP
UPD78F1188AGJ-GAE-AX MCU 16BIT 78K0R/KX3 144-LQFP
UPD78F1235GK-GAJ-AX MCU 16BIT 78K0R/LX3 64-LQFP
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
UPD78F1146AGA-HAB-AX 鍔熻兘鎻忚堪:MCU 16BIT 78K0R/KX3 64-TQFP RoHS:鏄� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 宓屽叆寮� - 寰帶鍒跺櫒锛� 绯诲垪:78K0R/Kx3 妯�(bi膩o)婧�(zh菙n)鍖呰:250 绯诲垪:80C 鏍稿績铏曠悊鍣�:8051 鑺珨灏哄:8-浣� 閫熷害:16MHz 閫i€氭€�:EBI/EMI锛孖²C锛孶ART/USART 澶栧湇瑷�(sh猫)鍌�:POR锛孭WM锛學DT 杓稿叆/杓稿嚭鏁�(sh霉):40 绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲�:- 绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨�:ROMless EEPROM 澶у皬:- RAM 瀹归噺:256 x 8 闆诲 - 闆绘簮 (Vcc/Vdd):4.5 V ~ 5.5 V 鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒:A/D 8x10b 鎸暕鍣ㄥ瀷:鍏�(n猫i)閮� 宸ヤ綔婧害:-40°C ~ 85°C 灏佽/澶栨:68-LCC锛圝 褰㈠紩绶氾級 鍖呰:甯跺嵎 (TR)
UPD78F1146AGB(R)-GAH-AX 鍒堕€犲晢:Renesas Electronics Corporation 鍔熻兘鎻忚堪:
UPD78F1146AGB-GAH-AX 鍔熻兘鎻忚堪:MCU 16BIT 78K0R/KX3 64-LQFP RoHS:鏄� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 宓屽叆寮� - 寰帶鍒跺櫒锛� 绯诲垪:78K0R/Kx3 妯�(bi膩o)婧�(zh菙n)鍖呰:250 绯诲垪:80C 鏍稿績铏曠悊鍣�:8051 鑺珨灏哄:8-浣� 閫熷害:16MHz 閫i€氭€�:EBI/EMI锛孖²C锛孶ART/USART 澶栧湇瑷�(sh猫)鍌�:POR锛孭WM锛學DT 杓稿叆/杓稿嚭鏁�(sh霉):40 绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲�:- 绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨�:ROMless EEPROM 澶у皬:- RAM 瀹归噺:256 x 8 闆诲 - 闆绘簮 (Vcc/Vdd):4.5 V ~ 5.5 V 鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒:A/D 8x10b 鎸暕鍣ㄥ瀷:鍏�(n猫i)閮� 宸ヤ綔婧害:-40°C ~ 85°C 灏佽/澶栨:68-LCC锛圝 褰㈠紩绶氾級 鍖呰:甯跺嵎 (TR)
UPD78F1146AGK-GAJ-AX 鍔熻兘鎻忚堪:MCU 16BIT 78K0R/KX3 64-LQFP RoHS:鏄� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 宓屽叆寮� - 寰帶鍒跺櫒锛� 绯诲垪:78K0R/Kx3 妯�(bi膩o)婧�(zh菙n)鍖呰:250 绯诲垪:80C 鏍稿績铏曠悊鍣�:8051 鑺珨灏哄:8-浣� 閫熷害:16MHz 閫i€氭€�:EBI/EMI锛孖²C锛孶ART/USART 澶栧湇瑷�(sh猫)鍌�:POR锛孭WM锛學DT 杓稿叆/杓稿嚭鏁�(sh霉):40 绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲�:- 绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨�:ROMless EEPROM 澶у皬:- RAM 瀹归噺:256 x 8 闆诲 - 闆绘簮 (Vcc/Vdd):4.5 V ~ 5.5 V 鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒:A/D 8x10b 鎸暕鍣ㄥ瀷:鍏�(n猫i)閮� 宸ヤ綔婧害:-40°C ~ 85°C 灏佽/澶栨:68-LCC锛圝 褰㈠紩绶氾級 鍖呰:甯跺嵎 (TR)
UPD78F1146GB-GAH-AX 鍒堕€犲晢:Renesas Electronics Corporation 鍔熻兘鎻忚堪: