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| 鍨嬭櫉锛� | PIC18F13K50-I/SS |
| 寤犲晢锛� | Microchip Technology |
| 鏂囦欢闋佹暩(sh霉)锛� | 66/285闋� |
| 鏂囦欢澶�?銆�?/td> | 0K |
| 鎻忚堪锛� | IC PIC MCU FLASH 8KB 20-SSOP |
| 鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� | XLP Deep Sleep Mode 8-bit PIC® Microcontroller Portfolio |
| 妯�(bi膩o)婧栧寘瑁濓細 | 67 |
| 绯诲垪锛� | PIC® XLP™ 18F |
| 鏍稿績铏曠悊鍣細 | PIC |
| 鑺珨灏哄锛� | 8-浣� |
| 閫熷害锛� | 48MHz |
| 閫ｉ€氭€э細 | I²C锛孲PI锛孶ART/USART锛孶SB |
| 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� | 14 |
| 绋嬪簭瀛樺劜鍣ㄥ閲忥細 | 8KB锛�4K x 16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� | 512 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 11x10b |
| 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� | 20-SSOP锛�0.209"锛�5.30mm 瀵級 |
| 鍖呰锛� | 绠′欢 |
| 鐢�(ch菐n)鍝佺洰閷勯爜闈細 | 642 (CN2011-ZH PDF) |
| 閰嶇敤锛� | DV164126-ND - KIT DEVELOPMENT USB W/PICKIT 2 DM164127-ND - KIT DEVELOPMENT USB 18F14/13K50 AC164112-ND - VOLTAGE LIMITER MPLAB ICD2 VPP XLT20SS-1-ND - SOCKET TRANSITION 18DIP 20SSOP AC164307-ND - MODULE SKT FOR PM3 28SSOP |
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2006 Microchip Technology Inc.
Preliminary
DS70178C-page 157
dsPIC30F1010/202X
14.8
Slope Control
The I2C standard requires slope control on the SDA
and SCL signals for Fast mode (400 kHz). The control
bit, DISSLW, enables the user to disable slew rate con-
trol, if desired. It is necessary to disable the slew rate
control for 1 MHz mode.
14.9
IPMI Support
The control bit IPMIEN enables the module to support
Intelligent Peripheral Management Interface (IPMI).
When this bit is set, the module accepts and acts upon
all addresses.
14.10 General Call Address Support
The general call address can address all devices.
When this address is used, all devices should,
in theory, respond with an acknowledgement.
The general call address is one of eight addresses
reserved for specific purposes by the I2C protocol. It
consists of all 鈥�0鈥檚 with R_W = 0.
The general call address is recognized when the Gen-
eral Call Enable (GCEN) bit is set (I2CCON<7> = 1).
Following a Start bit detection, 8 bits are shifted into
I2CRSR and the address is compared with I2CADD,
and is also compared with the general call address
which is fixed in hardware.
If a general call address match occurs, the I2CRSR is
transferred to the I2CRCV after the eighth clock, the
RBF flag is set, and, on the falling edge of the ninth bit
(ACK bit), the master event interrupt flag (MI2CIF) is
set.
When the interrupt is serviced, the source for the inter-
rupt can be checked by reading the contents of the
I2CRCV to determine if the address was device
specific, or a general call address.
14.11 I2C Master Support
As a Master device, six operations are supported.
Assert a Start condition on SDA and SCL.
Assert a Restart condition on SDA and SCL.
Write to the I2CTRN register initiating
transmission of data/address.
Generate a Stop condition on SDA and SCL.
Configure the I2C port to receive data.
Generate an ACK condition at the end of a
received byte of data.
14.12 I2C Master 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 data direction bit. In
this case, the data direction bit (R_W) is logic 鈥�0鈥�. Serial
data is transmitted 8 bits at a time. After each byte is
transmitted, an ACK bit is received. Start and Stop con-
ditions 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 data direction bit. In this case, the data
direction bit (R_W) is logic 1. Thus, the first byte trans-
mitted is a 7-bit slave address, followed by a 鈥�1鈥� to indi-
cate 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 ACK bit is
transmitted. Start and Stop conditions indicate the
beginning and end of transmission.
14.12.1
I2C MASTER TRANSMISSION
Transmission of a data byte, a 7-bit address, or the sec-
ond half of a 10-bit address is accomplished by simply
writing a value to I2CTRN register. The user should
only write to I2CTRN when the module is in a WAIT
state. This action will set the Buffer Full Flag (TBF) and
allow the Baud Rate Generator to begin counting and
start the next transmission. Each bit of address/data
will be shifted out onto the SDA pin after the falling
edge of SCL is asserted. The Transmit Status Flag,
TRSTAT (I2CSTAT<14>), indicates that a master
transmit is in progress.
14.12.2
I2C MASTER RECEPTION
Master mode reception is enabled by programming the
receive enable (RCEN) bit (I2CCON<3>). The I2C
module must be Idle before the RCEN bit is set, other-
wise the RCEN bit will be disregarded. The Baud Rate
Generator begins counting, and, on each rollover, the
state of the SCL pin toggles, and data is shifted in to the
I2CRSR on the rising edge of each clock.
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| PIC18F13K50T-I/SS | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 8KB Flash 512 RAM 15 I/O 10-B ADC USB 2.0 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 |
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