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| 型号： | DSP56857BUE |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 6/53页 |
| 文件大小： | 0K |
| 描述： | IC DSP 16BIT 120MHZ 100-LQFP |
| 标准包装： | 90 |
| 系列： | 568xx |
| 核心处理器： | 56800E |
| 芯体尺寸： | 16-位 |
| 速度： | 120MHz |
| 连通性： | SCI，SPI，SSI |
| 外围设备： | DMA，POR，WDT |
| 输入/输出数： | 47 |
| 程序存储器容量： | 80KB（40K x 16） |
| 程序存储器类型： | SRAM |
| RAM 容量： | 24K x 16 |
| 电压 - 电源 (Vcc/Vdd)： | 1.62 V ~ 1.98 V |
| 振荡器型： | 外部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 100-LQFP |
| 包装： | 托盘 |
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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
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PDF描述 |
|---|---|
| DSP56858FVE | IC DSP 16BIT 120MHZ 144-LQFP |
| DSP56F801FA80E | IC DSP 60MHZ 16KB FLASH 48-LQFP |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DSP56857E | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| DSP56857PB | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:120 MIPS Hybrid Processor |
| DSP56858 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| DSP56858E | 制造商:FREESCALE 制造商全称: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 |
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