PIC17C756-33I/L Microchip Technology, PIC17C756-33I/L Datasheet - Page 160
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PIC17C756-33I/L
Manufacturer Part Number
PIC17C756-33I/L
Description
MICRO CTRL 16K MEMORY OTP 68PLCC
Manufacturer
Microchip Technology
Series
PIC® 17Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC17C752-16L.pdf
(304 pages)
3.PIC17C752-16L.pdf
(4 pages)
4.PIC17C752-16L.pdf
(6 pages)
5.PIC17C756CL.pdf
(321 pages)
Specifications of PIC17C756-33I/L
Core Processor
PIC
Core Size
8-Bit
Speed
33MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
32KB (16K x 16)
Program Memory Type
OTP
Ram Size
902 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
68-PLCC
For Use With
AC164308 - MODULE SKT FOR PM3 68PLCCDVA17XL681 - DEVICE ADAPTER FOR PIC17C752DM173001 - KIT DEVELOPMENT PICDEM17AC174007 - MODULE SKT PROMATEII 68PLCCAC164024 - ADAPTER PICSTART PLUS 68PLCC
Lead Free Status / RoHS Status
Request inventory verification / Request inventory verification
Eeprom Size
-
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Part Number
Manufacturer
Quantity
Price
Part Number:
PIC17C756-33I/L
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PIC17C752-16L PDF datasheet #2
- PIC17C752-16L PDF datasheet #3
- PIC17C752-16L PDF datasheet #4
- PIC17C756CL PDF datasheet #5
- Current page: 160 of 321
- Download datasheet (3Mb)
15.2.14 MULTI -MASTER COMMUNICATION, BUS
Multi-Master mode support is achieved by bus arbitra-
tion. When the master outputs address/data bits onto
the SDA pin, arbitration takes place when the master
outputs a '1' on SDA by letting SDA float high and
another master asserts a '0'. When the SCL pin floats
high, data should be stable. If the expected data on
SDA is a '1' and the data sampled on the SDA pin = '0',
then a bus collision has taken place. The master will
set the Bus Collision Interrupt Flag, BCLIF and reset
the I
If a transmit was in progress when the bus collision
occurred, the transmission is halted, the BF flag is
cleared, the SDA and SCL lines are de-asserted, and
the SSPBUF can be written to. When the user ser-
vices the bus collision interrupt service routine, and if
the I
tion by asserting a START condition.
FIGURE 15-37: BUS COLLISION TIMING FOR TRANSMIT AND ACKNOWLEDGE
DS30264A-page 160
SDA
SCL
BCLIF
2
2
C port to its IDLE state. (Figure 15-37).
C bus is free, the user can resume communica-
COLLISION, AND BUS ARBITRATION
Data changes
while SCL = 0
SDA released
by master
Preliminary
SDA line pulled low
by another source
If a START, RESTART, STOP, or Acknowledge condi-
tion was in progress when the bus collision occurred,
the condition is aborted, the SDA and SCL lines are
de-asserted, and the respective control bits in the
SSPCON2 register are cleared. When the user ser-
vices the bus collision interrupt service routine, and if
the I
tion by asserting a START condition.
The Master will continue to monitor the SDA and SCL
pins, and if a STOP condition occurs, the SSPIF bit will
be set.
A write to the SSPBUF will start the transmission of
data at the first data bit, regardless of where the trans-
mitter left off when bus collision occurred.
In multi-master mode, the interrupt generation on the
detection of start and stop conditions allows the deter-
mination of when the bus is free. Control of the I
bus can be taken when the P bit is set in the SSPSTAT
register, or the bus is idle and the S and P bits are
cleared.
2
C bus is free, the user can resume communica-
Sample SDA. While SCL is high
data doesn’t match what is driven
by the master.
Bus collision has occurred.
Set bus collision
interrupt.
1997 Microchip Technology Inc.
2
C
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