DSPIC30F4013-20I/ML Microchip Technology, DSPIC30F4013-20I/ML Datasheet - Page 93
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DSPIC30F4013-20I/ML
Manufacturer Part Number
DSPIC30F4013-20I/ML
Description
IC DSPIC MCU/DSP 48K 44QFN
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.DSPIC30F3014-30IPT.pdf
(228 pages)
2.DSPIC30F3014-30IPT.pdf
(16 pages)
3.DSPIC30F3014-30IPT.pdf
(6 pages)
4.DSPIC30F3014-30IPT.pdf
(14 pages)
5.DSPIC30F3014-30IPT.pdf
(20 pages)
6.DSPIC30F3014-20IP.pdf
(226 pages)
Specifications of DSPIC30F4013-20I/ML
Core Processor
dsPIC
Core Size
16-Bit
Speed
20 MIPS
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
AC'97, Brown-out Detect/Reset, I²S, POR, PWM, WDT
Number Of I /o
30
Program Memory Size
48KB (16K x 24)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 13x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-QFN
Core Frequency
40MHz
Core Supply Voltage
5.5V
Embedded Interface Type
CAN, I2C, SPI, UART
No. Of I/o's
30
Flash Memory Size
48KB
Supply Voltage Range
2.5V To 5.5V
Package
44QFN EP
Device Core
dsPIC
Family Name
dsPIC30
Maximum Speed
20 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
16 Bit
Number Of Programmable I/os
30
Interface Type
CAN/I2C/SPI/UART
On-chip Adc
13-chx12-bit
Number Of Timers
5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT44QFN2 - SOCKET TRAN ICE 44QFN/40DIPAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
DSPIC30F401320IML
14.2
The I2CADD register contains the Slave mode
addresses. The register is a 10-bit register.
If the A10M bit (I2CCON<10>) is ‘0’, the address is
interpreted by the module as a 7-bit address. When an
address is received, it is compared to the 7 LSbs of the
I2CADD register.
If the A10M bit is ‘1’, the address is assumed to be a
10-bit address. When an address is received, it is com-
pared with the binary value, ‘11110 A9 A8’ (where A9
and A8 are two Most Significant bits of I2CADD). If that
value matches, the next address is compared with the
Least Significant 8 bits of I2CADD, as specified in the
10-bit addressing protocol.
TABLE 14-1:
14.3
Once enabled (I2CEN = 1), the slave module waits for
a Start bit to occur (i.e., the I
ing the detection of a Start bit, 8 bits are shifted into
I2CRSR, and the address is compared against
I2CADD. In 7-bit mode (A10M = 0), bits I2CADD<6:0>
are compared against I2CRSR<7:1> and I2CRSR<0>
is the R_W bit. All incoming bits are sampled on the
rising edge of SCL.
If an address match occurs, an Acknowledgement is
sent and the Slave Event Interrupt Flag (SI2CIF) is set
on the falling edge of the ninth (ACK) bit. The address
match does not affect the contents of the I2CRCV buf-
fer or the RBF bit.
14.3.1
If the R_W bit received is a ‘1’, the serial port goes into
Transmit mode. It sends an ACK on the ninth bit and
then holds SCL to ‘0’ until the CPU responds by writing
to I2CTRN. SCL is released by setting the SCLREL bit,
and 8 bits of data are shifted out. Data bits are shifted
out on the falling edge of SCL, such that SDA is valid
during SCL high. The interrupt pulse is sent on the
falling edge of the ninth clock pulse, regardless of the
status of the ACK received from the master.
2010 Microchip Technology Inc.
0x00
0x01-0x03
0x04-0x07
0x08-0x77
0x78-0x7b
0x7c-0x7f
I
I
2
2
C Module Addresses
C 7-Bit Slave Mode Operation
SLAVE TRANSMISSION
General Call Address or Start Byte
Reserved
HS mode Master Codes
Valid 7-Bit Addresses
Valid 10-Bit Addresses (lower 7 bits)
Reserved
7-BIT I
ADDRESSES SUPPORTED BY
dsPIC30F
2
C™ SLAVE
2
C module is ‘Idle’). Follow-
14.3.2
If the R_W bit received is a ‘0’ during an address
match, then Receive mode is initiated. Incoming bits
are sampled on the rising edge of SCL. After 8 bits are
received, if I2CRCV is not full or I2COV is not set,
I2CRSR is transferred to I2CRCV. ACK is sent on the
ninth clock.
If the RBF flag is set, indicating that I2CRCV is still
holding data from a previous operation (RBF = 1), then
ACK is not sent; however, the interrupt pulse is gener-
ated. In the case of an overflow, the contents of the
I2CRSR are not loaded into the I2CRCV.
14.4
In 10-bit mode, the basic receive and transmit opera-
tions are the same as in the 7-bit mode. However, the
criteria for address match is more complex.
The I
addressed for a write operation with two address bytes
following a Start bit.
The A10M bit is a control bit that signifies that the
address in I2CADD is a 10-bit address rather than a 7-bit
address. The address detection protocol for the first byte
of a message address is identical for 7-bit and 10-bit
messages, but the bits being compared are different.
I2CADD holds the entire 10-bit address. Upon receiv-
ing an address following a Start bit, I2CRSR <7:3> is
compared against a literal ‘11110’ (the default 10-bit
address) and I2CRSR<2:1> are compared against
I2CADD<9:8>. If a match occurs and if R_W = 0, the
interrupt pulse is sent. The ADD10 bit is cleared to indi-
cate a partial address match. If a match fails or
R_W = 1, the ADD10 bit is cleared and the module
returns to the Idle state.
The low byte of the address is then received and com-
pared with I2CADD<7:0>. If an address match occurs,
the interrupt pulse is generated and the ADD10 bit is
set, indicating a complete 10-bit address match. If an
address match did not occur, the ADD10 bit is cleared
and the module returns to the Idle state.
14.4.1
Once a slave is addressed in this fashion with the full
10-bit
“PRIOR_ADDR_MATCH”), the master can begin
sending data bytes for a slave reception operation.
Note:
dsPIC30F3014/4013
2
C specification dictates that a slave must be
address
I
2
C 10-Bit Slave Mode Operation
SLAVE RECEPTION
The I2CRCV is loaded if the I2COV bit = 1
and the RBF flag = 0. In this case, a read
of the I2CRCV was performed but the
user did not clear the state of the I2COV
bit before the next receive occurred. The
acknowledgement is not sent (ACK = 1)
and the I2CRCV is updated.
10-BIT MODE SLAVE TRANSMISSION
(we
refer
to
DS70138G-page 93
this
state
as