Host Port Pins HI32, Pci, Gpio | Motorola DSP56301 instruction

Host Interface (HI32)

Table 2-11.Summary of HI32 Signals and Modes (Continued)

Signal	PCI Mode	Enhanced Universal Bus Mode	Universal Bus Mode	GPIO Mode
Name	PCI Mode	Enhanced Universal Bus Mode	Universal Bus Mode	GPIO Mode
Name


HP40	HAD23	(pull up or down if not used)1	HD15	disconnected
HP41	HAD24	(pull up or down if not used)1	HD16	disconnected
HP42	HAD25	(pull up or down if not used)1	HD17	disconnected
HP43	HAD26	(pull up or down if not used)1	HD18	disconnected
HP44	HAD27	(pull up or down if not used)1	HD19	disconnected
HP45	HAD28	(pull up or down if not used)1	HD20	disconnected
HP46	HAD29	(pull up or down if not used)1	HD21	disconnected
HP47	HAD30	(pull up or down if not used)1	HD22	disconnected
HP48	HAD31	(pull up or down if not used)1	HD23	disconnected
HP49	HRST	HRST (Schmitt trigger buffer on input)

HP50
HP50	HINTA

PVCL	Leave unconnected

1.HD23-HD16 Output is high impedance if HRF≠$0. Input is disconnected if HTF≠$0.

Table 2-12.Host Port Pins (HI32)

Signal	PCI	Universal Bus Mode
Signal
Name		Enhanced Universal Bus Mode	GPIO
Name



HP[7–0]	HAD[15–0]	HA[10–3]	HIO[15–8]
	Address/Data Multiplexed Bus	Host Address Bus	GPIO2
	Tri-state bidirectional bus.	Input pin.
	During the first clock cycle of a	Selects HI32 register to access. HA[10–3]
	transaction HAD31-HAD0 contain the	select the HI32 and HA[2–0] select the
	physical byte address (32 bits).	particular register of the HI32 to be accessed.
	During subsequent clock cycles,
HP[15–8]	During subsequent clock cycles,	HD[7–0]
HP[15–8]	HAD31-HAD0 contain data.	HD[7–0]
	HAD31-HAD0 contain data.	Host Data Bus
		Host Data Bus
		Tri-state, bidirectional bus.
		Transfers data between the host processor
		and the HI32.
		This bus is released (disconnected) when the
		HI32 is not selected by HA[10-0]. The
		HD[23–0] pins are driven by the HI32 during a
		read access and are inputs to the HI32 during
		a write access.
		HD[23–16] outputs are high impedance if
		HRF≠$0. HD[23–16] inputs are disconnected
		if HTF≠$0.

2-16	DSP56301 User’s Manual

DSP56301 specifications

The Motorola DSP56301 is a highly efficient digital signal processor, specifically engineered for real-time audio and speech processing applications. This DSP is part of Motorola's renowned DSP56300 family, which is recognized for its innovative features and outstanding performance in the realm of digital signal processing.

One of the main features of the DSP56301 is its ability to handle complex computations at high speeds. With a maximum clock frequency of 66 MHz, it delivers fast performance, enabling it to process audio signals in real time. The chip is built on a 24-bit architecture, which allows for high-resolution audio processing. This is particularly beneficial in applications such as telecommunications, consumer audio devices, and professional audio equipment, where precision is paramount.

The DSP56301 boasts a comprehensive instruction set that includes efficient mathematical operations, which are essential for digital filters and audio effects processing. One of the key innovations of this device is its dual data path architecture, which permits simultaneous processing of multiple data streams. This feature significantly enhances the device's throughput and responsiveness, making it suitable for demanding applications such as voice recognition and synthesis.

In terms of memory regions, the DSP56301 includes several on-chip memory categories, such as program memory, data memory, and a specialized memory for coefficients. The architecture's support for external memory expansion further increases its versatility, allowing designers to tailor systems to their specific requirements.

The DSP56301 implements advanced features such as a powerful on-chip hardware multiplier and accumulator, simplifying complex mathematical tasks and accelerating the execution of algorithms. Its flexible interrupt system enhances its capability to respond to time-sensitive operations, while the integrated serial ports facilitate efficient data communication with external devices.

Power consumption is also a vital characteristic of the DSP56301. It is designed with energy efficiency in mind, allowing for extended operation in battery-powered devices. The chip’s low power requirements are particularly advantageous in portable audio devices and other applications where energy conservation is crucial.

In conclusion, the Motorola DSP56301 is an exceptional digital signal processor that combines high processing power, flexibility, and efficiency. Its main features, advanced technologies, and robust architecture make it a top choice for developers seeking to create sophisticated audio and signal processing systems. With its enduring legacy in the industry, the DSP56301 continues to be relevant in a variety of modern applications, ensuring it remains a valuable tool for engineers and designers.

Motorola DSP56301 user manual Host Port Pins HI32, Pci, Gpio

Models: DSP56301

Table 2-11.Summary of HI32 Signals and Modes (Continued)

Signal

HINTA

PVCL

Table 2-12.Host Port Pins (HI32)

PCI

GPIO

Address/Data Multiplexed Bus

Host Address Bus

GPIO2

Host Data Bus

DSP56301 specifications