參數(shù)資料
型號： DSPIC30F4013-30I/P
廠商： Microchip Technology
文件頁數(shù)： 28/153頁
文件大小： 0K
描述： IC DSPIC MCU/DSP 48K 40DIP
產(chǎn)品培訓(xùn)模塊： Serial Communications using dsPIC30F CAN
Serial Communications using dsPIC30F I2C
Serial Communications using dsPIC30F SPI
Serial Communications using dsPIC30F UART
dsPIC30F 12 bit ADC - Part 2
dsPIC30F Addressing Modes - Part 1
dsPIC30F Architecture - Part 1
dsPIC30F DSP Engine & ALU
dsPIC30F Interrupts
dsPIC30F Motor Control PWM
dsPIC Timers
Asynchronous Stimulus
dsPIC30F Addressing Modes - Part 2
dsPIC30F Architecture - Part 2
dsPIC30F 12-bit ADC Part 1
標(biāo)準(zhǔn)包裝： 10
系列： dsPIC™ 30F
核心處理器： dsPIC
芯體尺寸： 16-位
速度： 30 MIP
連通性： CAN，I²C，SPI，UART/USART
外圍設(shè)備： AC'97，欠壓檢測/復(fù)位，I²S，POR，PWM，WDT
輸入/輸出數(shù)： 30
程序存儲器容量： 48KB（16K x 24）
程序存儲器類型： 閃存
EEPROM 大小： 1K x 8
RAM 容量： 2K x 8
電壓 - 電源 (Vcc/Vdd)： 2.5 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 13x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 40-DIP（0.600"，15.24mm）
包裝： 管件
產(chǎn)品目錄頁面： 651 (CN2011-ZH PDF)
配用： AC30F003-ND - MODULE SOCKET DSPIC30F 40DIP
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
ACICE0206-ND - ADAPTER MPLABICE 40P 600 MIL
其它名稱： DSPIC30F4013-30IP
2010 Microchip Technology Inc.
DS70138G-page 123
dsPIC30F3014/4013
18.3
DCI Module Operation
18.3.1
MODULE ENABLE
The DCI module is enabled or disabled by setting/
clearing the DCIEN control bit in the DCICON1 SFR.
Clearing the DCIEN control bit has the effect of reset-
ting the module. In particular, all counters associated
with CSCK generation, Frame Sync, and the DCI buffer
control unit are reset.
The DCI clocks are shut down when the DCIEN bit is
cleared.
When enabled, the DCI controls the data direction for
the four I/O pins associated with the module. The port,
LAT and TRIS register values for these I/O pins are
overridden by the DCI module when the DCIEN bit is set.
It is also possible to override the CSCK pin separately
when the bit clock generator is enabled. This permits
the bit clock generator to operate without enabling the
rest of the DCI module.
18.3.2
WORD-SIZE SELECTION BITS
The WS<3:0> word-size selection bits in the DCICON2
SFR determine the number of bits in each DCI data
word. Essentially, the WS<3:0> bits determine the
counting period for a 4-bit counter clocked from the
CSCK signal.
Any data length, up to 16 bits, may be selected. The
value loaded into the WS<3:0> bits is one less the
desired word length. For example, a 16-bit data word
size is selected when WS<3:0> = 1111.
18.3.3
FRAME SYNC GENERATOR
The Frame Sync generator (COFSG) is a 4-bit counter
that sets the frame length in data words. The Frame
Sync generator is incremented each time the word-size
counter is reset (refer to Section 18.3.2 “Word-Size
Selection Bits”). The period for the Frame Synchroni-
zation generator is set by writing the COFSG<3:0>
control bits in the DCICON2 SFR. The COFSG period
in clock cycles is determined by the following formula:
EQUATION 18-1:
COFSG PERIOD
Frame lengths, up to 16 data words, may be selected.
The frame length in CSCK periods can vary up to a
maximum of 256 depending on the word size that is
selected.
18.3.4
FRAME SYNC MODE
CONTROL BITS
The type of Frame Sync signal is selected using the
Frame
Synchronization
mode
control
bits
(COFSM<1:0>) in the DCICON1 SFR. The following
operating modes can be selected:
Multichannel mode
I2S mode
AC-Link mode (16-bit)
AC-Link mode (20-bit)
The operation of the COFSM control bits depends on
whether the DCI module generates the Frame Sync
signal as a master device, or receives the Frame Sync
signal as a slave device.
The master device in a DSP/Codec pair is the device
that generates the Frame Sync signal. The Frame Sync
signal initiates data transfers on the CSDI and CSDO
pins and usually has the same frequency as the data
sample rate (COFS).
The DCI module is a Frame Sync master if the COFSD
control bit is cleared and is a Frame Sync slave if the
COFSD control bit is set.
18.3.5
MASTER FRAME SYNC
OPERATION
When the DCI module is operating as a Frame Sync
master device (COFSD = 0), the COFSM mode bits
determine the type of Frame Sync pulse that is
generated by the Frame Sync generator logic.
A new COFS signal is generated when the Frame Sync
generator resets to ‘0’.
In the Multichannel mode, the Frame Sync pulse is
driven high for the CSCK period to initiate a data trans-
fer. The number of CSCK cycles between successive
Frame Sync pulses depends on the word size and
Frame Sync generator control bits. A timing diagram for
the Frame Sync signal in Multichannel mode is shown
In the AC-Link mode of operation, the Frame Sync
signal has a fixed period and duty cycle. The AC-Link
Frame Sync signal is high for 16 CSCK cycles and is
low for 240 CSCK cycles. A timing diagram with the
timing details at the start of an AC-Link frame is shown
In the I2S mode, a Frame Sync signal having a 50%
duty cycle is generated. The period of the I2S Frame
Sync signal in CSCK cycles is determined by the word
Note:
These WS<3:0> control bits are used only
in the Multichannel and I2S modes. These
bits have no effect in AC-Link mode since
the data slot sizes are fixed by the protocol.
Frame Length = Word Length (FSG Value + 1)
Note:
The COFSG control bits have no effect in
AC-Link mode since the frame length is
set to 256 CSCK periods by the protocol.
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