IDT72V70190 Integrated Device Technology, IDT72V70190 Datasheet
IDT72V70190
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IDT72V70190 Summary of contents
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... I/O with 5V Tolerant Inputs /GCI interfaces DESCRIPTION: The IDT72V70190 is a non-blocking digital switch that has a capacity of 256 x 256 channels at 2.048 Mb/s. Some of the main features are: program- mable stream and channel control, Processor Mode, input offset delay and high- impedance output control. ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 PIN CONFIGURATIONS PIN 1 GND 1 RX0 2 3 RX1 RX2 4 RX3 5 6 RX4 RX5 7 RX6 8 RX7 9 F0i GND 12 CLK 13 14 VCC 15 DNC DNC 16 NOTES: 1. DNC - Do Not Connect. 2. All I/O pins are 5V tolerant Internal Connection, tie to Ground for normal operation. ...
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... Serial clock for shifting data in/out on the serial streams (RX/TX 0-7). This input accepts a 4.096 MHz clock. This input (active LOW) puts the IDT72V70190 in its reset state that clears the device internal counters, registers and brings TX0-7 and microport data outputs to a high-impedance state. The time constant for a power up reset circuit must be a minimum of five times the rise time of the power supply ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 FUNCTIONAL DESCRIPTION The IDT72V70190 is capable of switching 256 x 256, 64 Kbit/s PCM Kbit/s channel data. The device maintains frame integrity in data applications and minimum throughput delay for voice applications on a per channel basis. ...
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... The same is true if input channel n is switched to output channel n+1 or n+2. If the input channel n is switched to output channel n+3, n+4,..., the new output data will appear in the same frame. Table 1 shows the possible delays for the IDT72V70190 in the variable delay mode. CONSTANT DELAY MODE (V/C BIT = 1) In this mode, frame integrity is maintained in all switching configurations by making use of a multiple data memory buffer ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 CONNECTION MEMORY CONTROL The CCO pin is a 4.096 Mb/s output, which carries 512 bits. The contents of the CCO bit of each connection memory location are output on the CCO pin once every frame. The contents of the CCO bits of the connection memory are transmitted sequentially on to the CCO pin (2 bit cells for each bit in connection memory) and are synchronous with the data rates on the other serial streams ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 TABLE 1 — VARIABLE THROUGHPUT DELAY VALUE Delay for Variable Throughput Delay Mode Input Rate (m – output channel number) (n – input channel number) m < n+1, n+2 2.048 Mb/s 32 – (n-m) time-slots m time-slots m-n time-slots TABLE 3 — INTERNAL REGISTER AND ADDRESS MEMORY MAPPING ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 TABLE 5 — CONTROL REGISTER (CR) BITS Read/Write Address Reset Value: 0000 . Bit Name 15-6 Unused Must be zero for normal operation. 5 MBP When 1, the connection memory block programming feature is ready for the programming of Connection (Memory Block Program) Memory high bits, bit 11 to bit 15 ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 TABLE 7 — FRAME ALIGNMENT REGISTER (FAR) BITS Read/Write Address Reset Value: 0000 . CFE FD11 FD10 Bit Name 15-13 Unused 12 CFE (Complete Frame Evaluation) 11 FD11 (Frame Delay Bit 11) 10-0 FD10-0 (Frame Delay Bits) ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 TABLE 8 — FRAME INPUT OFFSET REGISTER (FOR) BITS Read/Write Address: 03 for FOR0 register for FOR1 register. H Reset Value: 0000 for all FOR registers OF32 OF31 OF30 DLE3 OF22 15 14 ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 TABLE 9 — OFFSET BITS (OFn2, OFn1, OFn0, DLEn) & FRAME DELAY BITS (FD11, FD2-0) Input Stream Offset No clock period shift (Default) + 0.5 clock period shift + 1.0 clock period shift + 1.5 clock period shift + 2.0 clock period shift + 2 ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 TABLE 10 — CONNECTION MEMORY BITS V/C LPBK PC CCO OE Bit Name 15 LPBK (Per Channel Loopback) V/C 14 (Variable/Constant Throughput Delay (Processor Channel) 12 CCO (Control Channel Output (Output Enable) 10 Unused (1) 9,8,7 SAB2-0 (Source Stream Address Bits) ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage CC Vi Voltage on Digital Inputs GND -0.3 I Current at Digital Outputs O T Storage Temperature S P Package Power Dissapation D NOTE: 1. Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 AC ELECTRICAL CHARACTERISTICS - FRAME PULSE AND CLK Symbol Characteristics ® t Frame Pulse Width (ST-BUS FPW t Frame Pulse Setup time before CLK falling (ST-BUS FPS t Frame Pulse Hold Time from CLK falling (ST-BUS FPH CLK Period ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 t FPW FPS CLK (1) TX Bit 0, Last Ch RX (1) Bit 0, Last Ch NOTE: 1. last channel = ch 31. t FPW F0i t FPS CLK t SOD (1) TX Bit 7, Last Ch RX (1) Bit 7, Last Ch NOTE: 1. last channel = ch 31. CLK (ST-BUS or WFPS mode) ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 AC ELECTRICAL CHARACTERISTICS - MULTIPLEXED BUS TIMING (INTEL) Symbol Parameter t ALE Pulse Width ALW t Address Setup from ALE falling ADS t Address Hold from ALE falling ADH RD Active after ALE falling t ALRD Data Setup from DTA LOW on Read ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 AC ELECTRICAL CHARACTERISTICS - MULTIPLEXED BUS TIMING (MOTOROLA) Symbol Parameter t ALE Pulse Width ASW t Address Setup from AS falling ADS t Address Hold from AS falling ADH Data Setup from DTA LOW on Read t DDR CS Hold after DS falling t CSH ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 AC ELECTRICAL CHARACTERISTICS-MOTOROLA NON-MULTIPLEXED BUS MODE Symbol Parameter t CS Setup from DS falling CSS t R/W Setup from DS falling RWS t Address Setup from DS falling ADS t CS Hold after DS rising CSH t R/W Hold after DS Rising RWH t Address Hold after DS Rising ...
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... IDT72V70190 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256 CLK GCI CLK ST-BUS t DSS DS t CSS CS t RWS R/W t ADS A0-A7 AD0- AD7/ D8-D15 DTA Figure 14. Motorola Non-Multiplexed Syncronous Bus Timing t DSS t DSPW t t CSS CSH t t RWH RWS t t ADH ADS VALID READ ...
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ORDERING INFORMATION IDT XXXXXX XX Device Type Package DATASHEET DOCUMENT HISTORY 5/02/2000 pg.1 1/03/2001 pgs 10, 13, 15, 16, 17, 18 and 19. 1/25/2001 pgs. 13 and 18. 08/06/2001 pg. 1 03/24/2003 pg 1. 12/07/2004 pgs. 4 ...