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參數(shù)資料
| 型號(hào)： | DSP56857E |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | 16-bit Digital Signal Controllers |
| 中文描述： | 16位數(shù)字信號(hào)控制器 |
| 文件頁數(shù)： | 14/53頁 |
| 文件大小： | 680K |
| 代理商： | DSP56857E |
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56857 Technical Data, Rev. 6
14
Freescale Semiconductor
85
HREQ
HTRQ
GPIOB14
Open Drain
Output
Open Drain
Output
Input/Output
Host Request (HREQ)
—When the HI08 is programmed for HRMS=0
functionality (typically used on a single-data- strobe bus), this open drain
output is used by the HI to request service from the host processor. The
HREQ may be connected to an interrupt request pin of a host processor,
a transfer request of a DMA controller, or a control input of external
circuitry.
These pins are disconnected internally.
Transmit Host Request (HTRQ)
—This signal is the Transmit Host
Request output when the HI08 is programmed for HRMS=1 functionality
and is typically used on a double-data-strobe bus.
Port B GPIO (14)
—This pin is a General Purpose I/O (GPIO) pin when
not configured for host port usage.
86
HACK
HRRQ
GPIOB15
Input
Open Drain
Output
Input/Output
Host Acknowledge (HACK)
—When the HI08 is programmed for
HRMS=0 functionality (typically used on a single-data-strobe bus), this
input has two functions: (1) provide a Host Acknowledge signal for DMA
transfers or (2) to control handshaking and provide a Host Interrupt
Acknowledge compatible with the MC68000 family processors.
These pins are disconnected internally during reset.
Receive Host Request (HRRQ)
—This signal
is the Receive Host
Request output when the HI08 is programmed for HRMS=1 functionality
and is typically used on a double-data-strobe bus.
Port B GPIO (15)
—This pin is a General Purpose I/O (GPIO) pin when
not configured for host port usage.
81
TIO0
GPIOG0
Input
/Output
Input/Output
Timer Input/Output (TIO0)
—This pin can be independently configured to
be either a timer input source or an output flag.
Port G GPIO (0)
—This pin is a General Purpose I/O (GPIO) pin that can
individually be programmed as an input or output pin.
79
TIO1
GPIOG1
Input
/Output
Input/Output
Timer Input/Output (TIO1)
—This pin can be independently configured to
be either a timer input source or an output flag.
Port G GPIO (1)
—This pin is a General Purpose I/O (GPIO) pin that can
individually be programmed as an input or output pin.
78
TIO2
GPIOG2
Input
/Output
Input/Output
Timer Input/Output (TIO2)
—This pin can be independently configured to
be either a timer input source or an output flag.
Port G GPIO (2)
—This pin is a General Purpose I/O (GPIO) pin that can
individually be programmed as an input or output pin.
Table 3-1 56857 Signal and Package Information for the 100-pin LQFP (Continued)
Pin No.
Signal Name
Type
Description
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DSP56858E | 16-bit Digital Signal Controllers |
| DSP56858FV120 | 16-bit Digital Signal Controllers |
| DSP56858FVE | 16-bit Digital Signal Controllers |
| DSP56858VF120 | 16-bit Digital Signal Controllers |
| DSP5685XEVMUM | Feature Phone Software Application Product Brief |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSP56857PB | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:120 MIPS Hybrid Processor |
| DSP56858 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| DSP56858E | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| DSP56858EVM | 制造商:Freescale Semiconductor 功能描述:Microprocessor Support IC For Use With:D |
| DSP56858EVMUM_D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP56858 Evaluation Module User＇s Manual |
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