PIC16F1526-I/PT Microchip Technology, PIC16F1526-I/PT Datasheet - Page 245
![MCU 14KB FLASH 768B RAM 64-TQFP](/photos/16/3/160367/tqfp-64_sml.jpg)
PIC16F1526-I/PT
Manufacturer Part Number
PIC16F1526-I/PT
Description
MCU 14KB FLASH 768B RAM 64-TQFP
Manufacturer
Microchip Technology
Datasheet
1.PIC16F1526-IPT.pdf
(354 pages)
Specifications of PIC16F1526-I/PT
Processor Series
PIC16F
Core
PIC
Program Memory Type
Flash
Program Memory Size
14 KB
Data Ram Size
768 B
Interface Type
MI2C, SPI, EUSART
Number Of Timers
9
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TQFP-64
Development Tools By Supplier
MPLAB IDE Software
Minimum Operating Temperature
- 40 C
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F1526-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC16F1526-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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21.6.13.2
During a Repeated Start condition, a bus collision
occurs if:
a)
b)
When the user releases SDAx and the pin is allowed to
float high, the BRG is loaded with SSPxADD and
counts down to zero. The SCLx pin is then deasserted
and when sampled high, the SDAx pin is sampled.
FIGURE 21-36:
FIGURE 21-37:
2011 Microchip Technology Inc.
A low level is sampled on SDAx when SCLx
goes from low level to high level.
SCLx goes low before SDAx is asserted low,
indicating that another master is attempting to
transmit a data ‘ 1 ’.
SDAx
SCLx
BCLxIF
RSEN
S
SSPxIF
SDAx
SCLx
RSEN
BCLxIF
S
SSPxIF
Bus Collision During a Repeated
Start Condition
BUS COLLISION DURING A REPEATED START CONDITION (CASE 1)
BUS COLLISION DURING REPEATED START CONDITION (CASE 2)
SCLx goes low before SDAx,
set BCLxIF. Release SDAx and SCLx.
Preliminary
T
BRG
Sample SDAx when SCLx goes high.
If SDAx = 0 , set BCLxIF and release SDAx and SCLx.
If SDAx is low, a bus collision has occurred (i.e., another
master is attempting to transmit a data ‘ 0 ’,
If SDAx is sampled high, the BRG is reloaded and
begins counting. If SDAx goes from high-to-low before
the BRG times out, no bus collision occurs because no
two masters can assert SDAx at exactly the same time.
If SCLx goes from high-to-low before the BRG times
out and SDAx has not already been asserted, a bus
collision occurs. In this case, another master is
attempting to transmit a data ‘ 1 ’ during the Repeated
Start condition, see
If, at the end of the BRG time-out, both SCLx and SDAx
are still high, the SDAx pin is driven low and the BRG
is reloaded and begins counting. At the end of the
count, regardless of the status of the SCLx pin, the
SCLx pin is driven low and the Repeated Start
condition is complete.
PIC16(L)F1526/27
Figure
T
Cleared by software
BRG
21-36.
Interrupt cleared
by software
’ 0 ’
’ 0 ’
DS41458A-page 245
’ 0 ’
Figure
21-35).
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